PLOD1 and polycystic ovary syndrome: ACTH: adrenocorticotropic hormone, †DHEA-S: dehydroepiandrosterone sulfate, ‡17-OHP: 17-hydroxyprogesterone, §LH: luteinizing hormone, **FSH: follicle-stimulating hormone, ††PCOS: polycystic ovary syndrome, ‡‡SD: standard deviation, §§IQR: interquartile range, ***IU: International Unit.