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Acta Eur Fertil. 1991 Jan-Feb;22(1):9-15.
The validation of the Billings ovulation method by laboratory research and field trials.
Billings JJ
https://pubmed.ncbi.nlm.nih.gov/1746210/
Endometriosis Self-Survey
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RRM vs IVF
Postpartum Depression & Anxiety
Long-term Endometriosis Management
Masterclass in Endometriosis & Surgery
Research Library
Blog
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