World Health Organization (WHO)
Jack Langenbrunner
Walter Enloe
Samia Amin
Unknown Author
International Development Research Centre (Canada)
Richard Y. Chin
National Research Council (U.S.). Subcommittee on Vitamin A Deficiency, Prevention, and Control
Fatima Shah
P.G. Smith
Kenneth S. Warren
R. S. Sugirtharajah
Jane Fountain
Effy Vayena
Anderson, Mary Ann
Irma Adelman
George Henderson
Fernando Vivanco
Audrey Aarons