1 .蒋雪,寇素茹,张梅,等.成骨不全遗传方式分析及病因探讨﹒中国优生与遗传杂志,2000,8.Et al . Direct se quencing of PCR products derived from cDNAs for the pro alpha 1 and pro alpha 2 chains of type 1 procolla gen as a screening method to detect mutations in pa tients with osteogenesis imperf ......