臀位 meaning in Chinese

breech (bottom first)
breech presentation
pelvic presentation

Analysis of correlative factors of neonatal stress ulcer prognosis
单胎初产臀位围产儿预后相关因素分析
Pathogenic analysis of congenital hipjoint dislocation caused by breech presentation and its prevention
臀位致先天性髋关节脱位的病因分析及预防
Clinic observations on correcting the baby position at the corner of birth by moxibustion cooperation with kneeling on knee and chest
艾灸至阴穴配合胸膝卧位矫正围产期臀位300例临床观察300