Disorders of fetal development including the principles of teratology and the mechanism of normal and abnormal parturiti还有乳房的病生理学、泌乳方面的疾病，以及胎儿发育的疾病──包括畸胎学原理与正常、异常分娩的机转──也都在授课范围之内。
CONCLUSION The effective factors of TEOAE on newborn hearing screening are gander,ears,born weight and parturition mode.论性别、耳别、出生体重以及分娩方式对TEOAE筛查通过率有影响。