Additional file 1: of Improving usability and pregnancy rates of a fertility monitor by an additional mobile application: results of a retrospective efficacy study of Daysy and DaysyView appMartin Koch, Johannes Lermann, Niels Van De Roemer, Simone Renner, Stefanie Burghaus, Janina Hackl, Ralf Dittrich, Sven Kehl, Patricia Oppelt, Thomas Hildebrandt, Caroline Hack, Uwe PĂśhls, Stefan Renner & Falk Thiel
The questionnaire. (DOCX 61Â kb)
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