20. ASSESSING THE RELATIONSHIP BETWEEN STRESS LEVEL, SLEEP QUALITY, LIFE QUALITY AND CHANGES IN FSH, LH, PROLACTIN HORMONE CONCENTRATIONS WITH THE RESULTS OF TREATMENT OF SEVERE ACNE VULGARIS WITH ISOTRETINOIN. YHCĐ [Internet]. 2024 Apr. 8 [cited 2026 Sept. 9];65(CĐ 2 - NCKH). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/1024