premature
labor
habitual premature labor習慣性早產
Threatened premature labor先兆早產
factors for premature labor早產因素
premature labor fetal早產胎兒
Idiopathic premature labor特發性早產
preventing premature labor阻斷早產
premature rupture Labor胎膜早破
premature e labor早產
Premature rupture of membranes, labor delayed by therapy胎膜早破,由于治療而使產程延遲