Participant characteristics associated with withdrawal from a large randomized trial of spermicide effectiveness
Titel:
Participant characteristics associated with withdrawal from a large randomized trial of spermicide effectiveness
Auteur:
Raymond, Elizabeth G Chen, Pai Lien Pierre-Louis, Bosny Luoto, Joanne Barnhart, Kurt T Bradley, Lynn Creinin, Mitchell D Poindexter, Alfred Wan, Livia Martens, Mark Schenken, Robert Nicholas, Cate F Blackwell, Richard