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对巴西家庭计划中心的49例不孕症病人进行研究,证明在黄体期(排卵后第10～12天)测孕激素水平有预测早孕可能性的价值。这49例病人分为三组:第一组为21例未怀孕的病人;第二组12例为已怀孕又因流产行刮宫术的病人;第三组16例为怀孕至足月的病人。这三组病人年龄为20～40岁。18例
A study of 49 infertile patients at the Brazilian Family Planning Center demonstrated that progestin levels during the luteal phase (day 10 to day 12 after ovulation) are predictive of the likelihood of early pregnancy. The 49 patients were divided into three groups: the first group of 21 nonpregnant patients; the second group of 12 patients who were pregnant and who underwent curettage due to miscarriage; and the third group of 16 patients who were pregnant to full term. The three groups of patients aged 20 to 40 years old. 18 cases