TY  - RPRT
TI  - Editorial: Perinatology begins before conception.
AU  - F Hecht
AU  - M L Pernoll
AU  - B K McCaw
PY  - 1975
DO  - 10.1056/nejm197509182931209
UR  - https://pubmed.ncbi.nlm.nih.gov/1152895/
ID  - 1152895
ER  -