产伤引起的颅骨骨折
Fracture of skull due to birth injury
单孔钻颅
Burr hole and drainage
Chronic subdural hematoma
电动颅骨钻的改进
Improvement of the electric skull borer
颅骨骨缺损
Type Ⅰ collagen matrix gels
锁骨颅骨发育不全综合征
Cleidocranial dysplasia CCD
细孔钻颅
fine - proed trephination