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第四次国际双胎学会会议介绍了近年的双胎研究情况及主要研究成果。这次会议发表的讲演共计148篇,其中专题讨论35篇,研究报告32篇,其它81篇是一般报告。在双胎研究中,临床方面比重较大(19篇),双胎发生率和双胎生物学方面15篇。其它方面主要有多胎妊娠和胎盘,双胎研究的方法论和生物统计学研究,先天异常,行动遗传学,精神病和遗传学等。一、双胎发生率和双胎生物学双胎的发生率因人种而异,不过单卵双胎发生率
The Fourth International Twin Tire Conference introduced the twins in recent years, research and major research results. A total of 148 lectures were delivered at the conference, of which 35 were thematic discussions, 32 were studies and 81 were general reports. In the twin study, the clinical aspects of a larger proportion (19), the incidence of twins and twins biology 15. Other areas include multiple pregnancies and placentas, twins research methodology and biostatistics, congenital anomalies, behavioral genetics, psychosis and genetics. First, the incidence of twins and twins biological twins vary according to race, but the incidence of monozygotic twins