in a prospective trial we enrolled 157 women at increased risk of preterm birth , randomly assigning women in a ratio of 1:2 to receive either frequent ( greater than or equal to 5 days/wk ) nursing contact , education in preterm labor symptoms , and self-palpation of uterine activity ( group e , n = 50 ) , or daily nursing contact , preterm labor education , and the term guard home uterine activity monitor ( group em , n = 107 ) .
C0151526
preterm birth
C0022876
preterm labor