For citations:
Absatarova Yu.S., Evseeva Yu.S., Andreeva E.N., Sheremetyeva E.V., Grigoryan O.R., Mikheev R.K. Difficulties of differential diagnosis of functional hypothalamic amenorrhea and polycystic ovary syndrome: a systematic review. Problems of Endocrinology. 2025;71(1):83-91. (In Russ.) https://doi.org/10.14341/probl13529

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