TY  - RPRT
TI  - Vitamin A in embryonic development.
AU  - M Maden
PY  - 1994
DO  - 10.1111/j.1753-4887.1994.tb01384.x
UR  - https://pubmed.ncbi.nlm.nih.gov/8202280/
ID  - 8202280
ER  -