TY  - RPRT
TI  - Progestogen only contraception and endometrial break through bleeding.
AU  - Oliver P Milling Smith
AU  - Hilary O D Critchley
PY  - 2005
DO  - 10.1007/s10456-005-9003-z
UR  - https://pubmed.ncbi.nlm.nih.gov/16211361/
ID  - 16211361
ER  -