TY  - RPRT
TI  - Hormonal contraception without estrogens.
AU  - J Collins
AU  - P G Crosignani
AU  - ESHRE Capri Workshop Group
DO  - 10.1093/humupd/dmb025
UR  - https://pubmed.ncbi.nlm.nih.gov/12926530/
ID  - 12926530
ER  -