Effect of supplementation with vitamin A or beta carotene on mortality related to pregnancy. Slight modifications in definitions could alter interpretation of results.
Ronsmans
C
C
Campbell
O
O
Collumbien
M
M
D019587:Dietary Supplements; D005260:Female; D006801:Humans; D008297:Male; D008428:Maternal Mortality; D011247:Pregnancy; D011248:Pregnancy Complications / Q000401:mortality*; D014801:Vitamin A / Q000008:administration & dosage*; D019207:beta Carotene / Q000008:administration & dosage*
D019207:beta Carotene; D014801:Vitamin A