1 Introduction Patients with a diagnosis of polycystic ovary syndrome(PCOS)are on the rise.About 4%-12%of women are currently estimated to have this condition[1].It is hypothesized that PCOS appears in women who have long-standing insulin resistance(IR),which leads to high androgen and testosterone levels;this ultimately disrupts their menstrual cycles[1,2].Some researchers attribute IR to genetic factors[3],although there have been only minute changes in the human
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机译:信息不对称下,“中药材全产业链服务商”模式对中药材价格的影响研究 =Pricing and Information Asymmetry in the Chinese Herbal Medicine Markets - A Study of the Mode of "Chinese Herbal Medicine Industry Chain Service Provider"