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Flow chart of the study population in the Northern Finland Birth Cohort 1966 (NFBC1966). Including the numbers of participants in study groups controls (Ctrl) and women with oligo-amenorrhea (OA), hirsutism (H), or polycystic ovary syndrome (PCOS) and for measurements self-reported life-satisfaction, health status and 15D health-related quality of life (HRQoL).
