Fertility Awareness · Biomarkers Billings natural FP method: Correlation of subjective signs with cervical mucus quality and ovulation Etchepareborda JJ, and 2 others ▾Rivero LV, Kesserü E Published November 1983 Contraception DOI 10.1016/0010-7824(83)90078-1 Save Share Cite License Share this paper Copy link EmailLinkedInXFacebookWhatsApp Cite this paper For EndNote, Zotero or Mendeley: .RIS BibTeX License No open license is recorded for this paper. Reuse terms are set by the publisher.
Biomarkers · Cervical Mucus Cervical mucus as a biological sign of fertility and infertility Billings JJ, 1984