Osteoradionecrosis of the jaws (ORNJ) is one of the severe complications after radiotherapy for malignant tumors of the caput and cervical part.

颌放射死是头颈部恶肿瘤放射治疗的严重发症,拟对中文文中的防治法进行复习和评价。

Abstract： Aim:To establish the methods of microfertilization and explore the fertilizing potential of mouse sperm obtained from caput epididymidis and cauda epididymidis.

摘 要： 目的:建立显微受精的法，探讨小鼠附睾精子在显微注射进入卵母细胞后的受精能力。