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
Willis TA, Hartley S, Glidewell L, Farrin AJ, Lawton R, McEachan RRC, Ingleson E, Heudtlass P, Collinson M, Clamp S, Hunter C, Ward V, Hulme C, Meads D, Bregantini D, Carder P, Foy R. Action to support practices implement research evidence (ASPIRE): protocol for a cluster-randomised evaluation of adaptable implementation packages targeting 'high impact' clinical practice recommendations in general practice. Implement Sci. 2016 Feb 29;11(25). doi: 10.1186/s13012-016-0387-5