TY  - RPRT
TI  - Vitamin supplementation in pregnancy.
AU  - A Best
AU  - J Little
AU  - M MacPherson
PY  - 1989
DO  - 10.1177/146642408910900209
UR  - https://pubmed.ncbi.nlm.nih.gov/2500521/
ID  - 2500521
ER  -