4. Five birth defects most commonly seen were arranged in following orders : deformity of external ear, polydactyly, congenital heart disease, extremities shortness, cheiloschisis and palatoschisis.
多指（或趾）
人（或动物）有超过
常数目足趾或手指人或动物收藏指
]，多趾[]
,天生;质;;
;
常,反常,变
,;4. Five birth defects most commonly seen were arranged in following orders : deformity of external ear, polydactyly, congenital heart disease, extremities shortness, cheiloschisis and palatoschisis.
多指（或趾）人（或动物）有超过常数目足趾或手指人或动物收藏指
The Great Pyrenees even has a double dewclaw, an inherited trait called polydactyly, so that there are two bony digits instead of one.
其次，“义趾”
和分布是多样，迄今没有看到关于其发生和“遗传规律”文献。
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