Ovulatory status and menstrual cycle duration
Ovulatory status and menstrual cycle duration assessed by self-collection of urine on pH strips in a population-based sample of French women not using hormonal contraception. Eur J Contracept Reprod Health Care. 2017 Dec;22 (6):450-458. doi: 10.1080/13625187.2017.1410881. Epub 2017 Dec 20.
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