Bond JC, Geller RJ, White KO, Hatch EE, Rothman KJ, Wise LA. Concordance of self-reported sexual intercourse frequency between members of mixed-sex couples attempting conception. Can J Hum Sex. 2022 Dec;31(3):342-53. doi: 10.3138/cjhs.2021-0059
Doherty K, Barry M, Marcano-Belisario J, Arnaud B, Morrison C, Car J, Doherty G. A mobile app for the self-report of psychological well-being during pregnancy (BrightSelf): qualitative design study. JMIR Ment Health. 2018 Nov 27;5(4):e10007. doi: 10.2196/10007
Hifinger M, Hiligsmann M, Ramiro S, Watson V, Berghea F, Pentek M, Keat A, Severens JL, Fautrel B, Boonen A. Influence of disease activity on RA treatment choices in countries with restricted access to expensive, innovative drugs: a discrete choice experiment among rheumatologists. RMD open. 2017 Sep 4;3(2):E000453. doi: 10.1136/rmdopen-2017-000453