TY  - RPRT
TI  - Endocrine changes in normal pregnancy.
AU  - E H VENNING
PY  - 1955
DO  - 10.1016/s0002-9343(55)80014-9
UR  - https://pubmed.ncbi.nlm.nih.gov/13268470/
ID  - 13268470
ER  -