TY  - RPRT
TI  - [Natural family planning (symptothermal method) and objective ovulation parameters--a pilot study].
AU  - G Freundl
AU  - D Suberg
AU  - A M Flynn
AU  - H P Diemer
PY  - 1984
DO  - 10.1055/s-2008-1036680
UR  - https://pubmed.ncbi.nlm.nih.gov/6378714/
ID  - 6378714
ER  -