TY  - RPRT
TI  - Prolonged gestation.
AU  - J R Esterly
AU  - E H Oppenheimer
PY  - 1973
DO  - 10.1016/0002-9378(73)90313-x
UR  - https://pubmed.ncbi.nlm.nih.gov/4691856/
ID  - 4691856
ER  -