TY  - RPRT
TI  - Physicians' knowledge and practices regarding natural family planning.
AU  - J B Stanford
AU  - P B Thurman
AU  - J C Lemaire
PY  - 1999
DO  - 10.1016/s0029-7844(99)00388-9
UR  - https://pubmed.ncbi.nlm.nih.gov/10546708/
ID  - 10546708
ER  -