病例:先证者:男,29岁,农民,智力及表型正常,结婚8年,其妻孕5胎,流产3胎均在二月余,另外二胎经保胎治疗,出生后二天内死亡。1989年8月来我院就诊。查体:身高172ｍ,体重62ｋｇ,表现及智力均正常,平时身体健康,无毒物及放射性物质接触史,有烟酒嗜好,其妻身体健康,妇科检查均正常; Case: proband: male, 29 years old, peasant, normal intelligence and phenotype, married for 8 years, his wife 5 pregnancies, abortion 3 tires are in February more than the other two fetus by miscarriage treatment, within two days after birth death. August 1989 came to our hospital. Physical examination: height 172m, weight 62kg, performance and intelligence are normal, usually healthy, non-toxic and radioactive material exposure, alcohol and tobacco preferences, his wife’s health, gynecological examination were normal;