C Carlier, J Coste, M Etchepare, B Périquet, O Amédée-Manesme
Carlier C, Coste J, Etchepare M, Périquet B, Amédée-Manesme O.
A randomised controlled trial to test equivalence between retinyl palmitate and beta carotene for vitamin A deficiency.
British Medical Journal 1993; 307 :1106
doi:10.1136/bmj.307.6912.1106