Smoking cessation and pregnancy intervention trial: preliminary mid-trial results.
Department of Health Behavior, School of Public Health, University of Alabama, Birmingham 35294.
R A
RA
Windsor
J B
JB
Lowe
L
L
Artz
L
L
Contreras
D005260:Female; D006801:Humans; D008427:Maternal Health Services; D011247:Pregnancy; D011446:Prospective Studies; D016032:Randomized Controlled Trials as Topic; D000074606:Smoking Prevention; D013997:Time Factors