Special features of health services and register based trials - experiences from a randomized trial of childbirth classes
Elina Hemminki, Kaija Heikkilä, Tiina Sevón, Päivikki KoponenVolume:
8
Language:
english
DOI:
10.1186/1472-6963-8-126
Date:
December, 2008
File:
PDF, 218 KB
english, 2008