Subjects: COLLEGE students; CONFIDENCE; CLINICAL trials
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Subjects: PREMATURE labor; DURATION of pregnancy; OXIDATIVE stressUNITED States
Subjects: PREMATURE infants; UMBILICAL cord; CLINICAL trials
Subjects: LOW birth weight; CLINICAL trials; PREMATURE labor
Subjects: FIBRONECTINS; PREMATURE labor prevention; ULTRASONIC imaging
Subjects: PREMATURE labor prevention; 17-hydroxyprogesterone; CLINICAL trials
Subjects: CLINICAL trials; HEARTBURN; HIGH-risk pregnancy
Subjects: OBSTETRICS; PREMATURE labor; PREMATURE labor prevention
Subjects: PROGESTERONE; PREMATURE labor prevention; CLINICAL trials
Subjects: CLINICAL trials; OXYTOCIN; CHEMICAL inhibitorsTAIWAN