TY  - RPRT
TI  - The defective luteal phase.
AU  - P G Crosignani
PY  - 1988
DO  - 10.1093/oxfordjournals.humrep.a136666
UR  - https://pubmed.ncbi.nlm.nih.gov/3281963/
ID  - 3281963
ER  -