the first year of our trial of ambulatory tocodynamometry in 157 women at risk of preterm labor did not reveal significant differences in rates of preterm labor and preterm delivery between two groups of women randomly assigned to receive preterm labor education , frequent ( 5 days/week ) telephone contact , and self-palpation of uterine activity ( group ep ) , or to preterm labor education , daily telephone contact , and the term guard ambulatory uterine activity monitor ( group em ) .
C0151526
preterm delivery
C0022876
preterm labor