This study was conducted in 196 premature infants on alternate days during a period of 28 days. 98 infants received 10000 IU vitamin A, and 98 received a placebo supplement. This study showed that through supplementation of vitamin A the all-cause death rate and oxygen requirements decreased in this vulnerable group of patients. Further details can be found in the study.
Yuishin Izumi, Ryuji Kaji