N codes
USE Nature of injury codes

Nail biting
BT Habits

Nanism
USE Dwarfism

Nannies
USE Child care workers

Narcolepsy
BT Brain diseases
     Sleep disorders

National health care reform
BT Health care reform
RT State health care reform

National programs
BT Programs
RT Federal programs

National surveys
BT Surveys
RT Community surveys
     State surveys

Native Americans
USE American Indians

Natural childbirth
BT Childbirth
RT Alternative birth styles
     Cesarean section

Natural family planning
BT Contraception
NT Rhythm method
     Coitus interruptus

Nature nurture controversy
BT Psychology and Development
RT Environmental influences

Nature of injury codes
SN Codes used to identify the nature of an injury
UF N codes
BT International classification of diseases
RT Diagnosis
     External cause of injury codes

Nausea
BT Diseases and Disorders
NT Nausea gravidarum
RT Hyperemesis gravidarum
     Vomiting

Nausea gravidarum
UF Morning sickness
BT Nausea
RT Pregnancy

Navy
USE Military

Near drowning
BT Aquatic injuries
RT Boating
     Diving
     Drowning
     Swimming
     Swimming pools
     Water safety
     Water safety instruction

Nebraska
BT United States

Neck injuries
BT Injuries

Needle exchange programs
BT Health programs
RT Intravenous drug abuse
     Intravenous drug use

Needs assessment
BT Assessment
RT Advisory committees
     Case management
     Personnel needs
     Psychological needs
     Resource allocation
     Service delivery systems
     Surveys

Negligence
BT Medical malpractice
RT Accountability
     Medical errors
     Physician impairment
     Professional impairment

Negotiation
SN To meet with another so as to arrive through discussion at some kind of agreement or compromise
BT Interpersonal relations
RT Alternative dispute resolution
     Conflict resolution
     Dispute resolution
     Mediation

Neonatal abstinence syndrome
BT Neonatal diseases
     Syndromes
RT Drug use during pregnancy

Neonatal addiction
BT Substance dependence
RT Drug addiction
     Fetal alcohol syndrome
     Perinatal addiction
     Prenatal addiction

Neonatal death
SN Physiologic death and loss of life; for death as a statistical concept, use Neonatal mortality
BT Infant death
RT Fetal death
     Perinatal bereavement

Neonatal diseases
BT Diseases
NT Tyrosinemia
     Premature infant diseases
     Persistent fetal circulation syndrome
     Pediatric HIV
     Pediatric AIDS
     Neonatal jaundice
     Neonatal abstinence syndrome
     Low birthweight
     Listeria infections
     Icthyiosis
     Hyperphenylalaninemia
     Hereditary hyperbilirubinemia
     Gaucher disease
     Fragile X syndrome
     Fetal erythroblastosis
     Cystic fibrosis
     Cleft palate
     Cleft lip
     Birth injuries
     Beckwith Wiedemann syndrome
     Asphyxia neonatorum
RT Apnea
     Fetal diseases
     Hydrocephalus

Neonatal intensive care
BT Pediatric intensive care
RT Neonatal intensive care units

Neonatal intensive care units
BT Pediatric intensive care units
RT Hospital nurseries
     Neonatal intensive care

Neonatal jaundice
BT Neonatal diseases
RT Hereditary hyperbilirubinemia
     Hyperbilirubinemia

Neonatal morbidity
SN Sickness among infants during the first 28 days of life
BT Infant morbidity
RT Fetal morbidity

Neonatal mortality
SN Statistical incidence of deaths among infants during the first 28 days of life; for physiologic death and loss of life during this period, use Neonatal death
BT Infant mortality
RT Fetal mortality
     Perinatal mortality

Neonatal screening
UF Newborn screening
BT Health screening
RT Apgar scale
     Developmental screening
     Genetic screening
     Prenatal screening

Neonates
USE Newborn infants

Neonatologists
BT Pediatricians
RT Perinatologists

Neonatology
BT Pediatrics
RT Perinatology

Neoplasms
USE Tumors

Nervous system diseases
UF Neurologic disorders
BT Diseases
NT Peripheral nerve diseases
     Paralysis
     Neuromuscular diseases
     Movement disorders
     Mental retardation
     Hyperactivity
     Headaches
     Central nervous system diseases
     Autonomic nervous system diseases
RT Communication disorders
     Developmental disabilities

Nervousness
BT Personality traits

Netherlands
BT Developed countries
     Europe

Networking
SN Informal communication among members of a group (e.g., health professionals) to exchange information, job advice, job leads, etc.
BT Communication
RT Electronic mail
     Interpersonal relations
     Marketing

Neural development
BT Physical development

Neural tube defects
UF Myelodysplasia
BT Congenital abnormalities
NT Spina bifida
     Meningocele
     Hereditary sensory autonomic neuropathies
     Hereditary motor and sensory neuropathies
     Arnold Chiari deformity
     Anencephaly

Neurofibromatosis
BT Autosome disorders
     Hereditary neoplastic syndromes
     Mental retardation
RT Cancer

Neurologic disorders
USE Nervous system diseases

Neurologic tests
BT Diagnostic techniques

Neurologists
BT Physicians
NT Pediatric neurologists

Neurology
BT Medicine
NT Pediatric neurology
RT Brain

Neuromuscular diseases
BT Nervous system diseases
NT Myasthenia gravis
     Muscular dystrophy
     Muscular atrophy
     Amyotrophic lateral sclerosis
RT Hyperactivity
     Muscular diseases

Neuropsychological tests
SN Tests used to diagnose brain damage or other neurological dysfunction
BT Diagnostic techniques
RT Brain

Neuroses
UF Neurotic disorders
BT Mental disorders
NT Traumatic neurosis
     Posttraumatic stress disorder
     Phobias
     Panic disorder
     Factitious disorders
     Death anxiety
     Affective disorders
RT Personality disorders
     Psychoses

Neurosurgeons
BT Surgeons

Neurosurgery
BT Medicine

Neurotic disorders
USE Neuroses

Neuroticism
BT Personality traits

Nevada
BT United States

New England
SN A region of the United States that contains the states Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. USE only when a document refers to the region as a whole.
BT Geographic regions
NT Vermont
    Rhode Island
    New Hampshire
    Massachusetts
    Maine
    Connecticut
RT Northeastern United States
    United States

New federalism
USE Federalism

New Hampshire
BT New England
United States

New Jersey
BT United States

New Mexico
BT United States

New York
BT United States

New Zealand
BT Developed countries
RT Pacific Islands

Newborn infants
SN Infants ages birth to one month
UF Neonates
BT Infants
RT Failure to thrive
     Low birthweight infants
     Premature infants

Newborn screening
USE Neonatal screening

Newsletters
BT Periodicals
NT Electronic newsletters
RT Journals
     Newspapers

Newspapers
BT Mass media
     Periodicals
RT Journals
     Media violence
     Newsletters

Niemann Pick disease
BT Blood and lymphatic diseases
     Brain diseases
     Mental retardation

Night terrors
USE Sleep disorders

No fault liability
BT Liability
RT Liability insurance
     Liability limitations
     Medical liability
     Strict liability

Non English language materials
SN Use as an umbrella term for materials in languages other than Spanish or the Asian languages
UF Foreign language materials
BT Technology, Information, and Publications
NT Spanish language materials
     Asian language materials
RT Languages
     Translations

Non English speakers
USE Limited English speakers

Noncollege bound students
SN USE for high school students who are not planning to attend college; combine with Young adults to index young people of college age who are not attending college
BT High school students
RT College bound students
     Out of school youth
     Vocational education

Nonconformity
BT Personality traits
RT Conformity

Nonprejudicial language
SN Language that avoids stereotypes or prejudicial attitudes based on race, sex, age, disability status, etc.
BT Language
RT Labeling
     Social bias

Nonverbal communication
BT Communication
NT Laughter
     Crying
RT Augmentative communication
     Communication skills

Noonan syndrome
SN Male phenotype of Turner syndrome
BT Endocrine sexual disorders
     Syndromes
RT Gonadal dysgenesis
     Turner syndrome

North America
BT Geography
NT United States
     Mexico
     Canada
RT Developed countries

North Carolina
BT United States

North Dakota
BT United States

Northern Ireland
BT Developed countries
     United Kingdom
RT Great Britain

Northern Mariana Islands
BT Pacific Islands
     United States
RT American Samoa
     Developing countries
     Federated States of Micronesia
     Guam
     Hawaii
     Marshall Islands

Northwestern United States
SN A region of the United States generally considered to include Idaho, Montana, Oregon, Washington, and Wyoming.
UF Pacific Northwest
BT Geographic regions
RT United States

Norway
BT Developed countries
     Scandinavia
RT Denmark
     Sweden

Nurse clinicians
UF Clinical nurse specialties
BT Registered nurses

Nurse midwives
BT Midwives
     Nurses

Nurse practitioners
BT Registered nurses

Nurses
BT Health personnel
     Professional personnel
NT Visiting nurses
     School nurses
     Registered nurses
     Psychiatric nurses
     Nurse midwives
     MCH nurses
     Licensed vocational nurses
     Licensed practical nurses
RT Nurse patient relations
     Nurses" aides
     Nursing
     Nursing administration
     Nursing staff

Nurses" aides
BT Allied health personnel
     Paraprofessional personnel
RT Nurses

Nursing
BT Health occupations
NT School nursing
     Psychiatric nursing
     Practical nursing
     Pediatric nursing
     Obstetrical nursing
     Nursing specialties
RT Nurses
     Nursing services

Nursing care plans
USE Patient care planning

Nursing caries
USE Early childhood caries

Nursing education
BT Professional education
RT Fellowships
     Nursing schools

Nursing homes
BT Health facilities
     Residential facilities
NT Skilled nursing facilities
     Pediatric nursing homes
     Intermediate care facilities
RT Hospices
     Hospitals
     Long term care
     Residential care

Nursing schools
BT Colleges
     Schools
RT Dental schools
     Medical schools
     Nursing education
     Pharmacy schools
     Professional education
     Public health schools

Nursing services
BT Health services
RT Nursing
     Triage

Nursing specialties
BT Nursing

Nursing staff
BT Hospital personnel
RT Nurses

Nutrients
BT Nutrition and Food
NT Proteins
     Minerals
     Iron
     Fats
     Carbohydrates
     Calcium
RT Food

Nutrition
SN Use for both the concept of nutrition and the occupational group
BT Nutrition and Food
NT Public health nutrition
     Preconceptional nutrition
     Maternal nutrition
     Child nutrition
     Adolescent nutrition
RT Dietetics
     Food
     Nutrition policy
     Physiology

Nutrition aides
BT Allied health personnel
     Paraprofessional personnel
RT Dietetic technicians

Nutrition anemia
BT Anemia

Nutrition assessment
SN Assessment of an individual's nutritional status, which encompasses the degree to which the physiological need for nutrition is being met and the balance between nutrient intake and nutrient expenditure. Includes dietary history and intake data, biochemical data, clinical examination and pertinent health history, anthropometric data, and psychosocial data
BT Assessment
     Nutrition monitoring
NT Dietary assessment
RT Nutrition indexes
     Nutritional status

Nutrition attitudes
BT Attitudes
RT Public health nutrition

Nutrition consultation
SN Services of nutritionists to maternal and child health programs
BT Consultation
     Nutrition services
RT Nutrition counseling
     Nutrition education

Nutrition counseling
SN Services of nutritionists to clients, such as dietary counseling
BT Nutrition education
     Nutrition services
RT Lactation management
     Nutrition consultation

Nutrition disorders
SN Abnormalities in an individual's ability to take in and process food
UF Malnutrition
BT Disorders
NT Vitamin deficiencies
     Underweight
     Starvation
     Protein deficiency disorders
     Obesity
     Magnesium deficiency
     Iron deficiency anemia
     Folic acid deficiency anemia
     Child nutrition disorders
RT Anorexia nervosa
     Eating disorders
     Failure to thrive
     Feeding disorders

Nutrition education
BT Education
NT Nutrition counseling
RT Nutrition consultation
     Nutrition services

Nutrition indexes
BT Nutrition monitoring
RT Nutrition assessment

Nutrition monitoring
BT Monitoring
NT Nutrition indexes
     Nutrition assessment
RT Preconceptional nutrition

Nutrition policy
BT Public policy
NT Dietary guidelines
RT Nutrition
     Public health nutrition

Nutrition programs
BT Programs
     Social services
NT WIC Program
     School lunch programs
     School breakfast programs
     Maternal nutrition programs
     Child nutrition programs
     Child and Adult Care Food Program
RT Commodity Supplemental Food Program
     Food banks
     Food Stamp Program
     Nutrition services
     Soup kitchens

Nutrition research
BT Research

Nutrition services
BT Services
NT Nutrition counseling
     Nutrition consultation
RT Nutrition education
     Nutrition programs

Nutrition surveys
BT Surveys
RT Health surveys

Nutritional requirements
BT Nutrition and Food
NT Dietary guidelines
RT Nutritive value
     Recommended dietary allowances

Nutritional status
BT Nutrition and Food
RT Nutrition assessment

Nutritionists
SN Persons who provide nutrition services; usually those who have a degree in nutrition but who have not completed the registration process to become dieticians
BT Health personnel
     Professional personnel
NT Public health nutritionists
     Pediatric nutritionists
     Dietitians

Nutritive value
BT Nutrition and Food
RT Nutritional requirements