title: EPIDEMIOLOGY AND PUBLIC HEALTH ASPECTS OF HYPOVITAMINOSIS A. A GLOBAL SURVEY ON XEROPHTHALMIA.
mesh_terms: D000293:Adolescent; D001361:Avitaminosis; D002648:Child; D003677:Deficiency Diseases; D004813:Epidemiology; D005128:Eye Diseases; D006306:Health Surveys; D006801:Humans; D007223:Infant; D007390:International Agencies; D009749:Nutrition Surveys; D011634:Public Health; D014802:Vitamin A Deficiency; D014944:World Health Organization; D014985:Xerophthalmia
keywords: ADOLESCENCE; CHILD; DEFICIENCY DISEASES; EPIDEMIOLOGY; EYE DISEASES; HEALTH SURVEYS; INFANT; INTERNATIONAL AGENCIES; NUTRITION SURVEYS; PUBLIC HEALTH; VITAMIN A DEFICIENCY; WORLD HEALTH ORGANIZATION; XEROPHTHALMIA