... Stanford3Address: 1Department of Preventive Medicine and Public Health, School of Medicine, University of Navarra, Irunlarrea 1, 31008 Pamplona, Spain, 2School of Public Health, University of Bielefeld, Germany ... attitudes for postfertilization effects.The purpose of our study was to assess the attitudes aboutthe mechanisms of action of FP in terms of whether thesemay influence a woman's decision ... hypothetical method of FP.In further sections women were asked about their knowl-edge of the mechanism of action of specific FP methodsand if doctors or providers should explain the details of how a...