“…We identified one additional article by manually searching the references of the included articles (Chan, Gooi, Mydlarz, & Agrawal, 2016). A total of 26 studies (Boakye et al., 2018, 2019; Chan et al., 2016; Chen et al., 2008, 2011; Chow, Au, Mang, Cheung, & Risk, 2019; Chuang et al., 2008; Cianfriglia, Di Gregorio, & Manieri, 1999; Dikshit et al., 2005; Dong & Hemminki, 2001; Goggins et al., 2010; Jégu, Binder‐Foucard, Borel, & Velten, 2013; Jung, Lim, Jung, Ryu, & Won, 2015; Lee, Wang, Lu, Huang, & Chen, 2017; Levi, Randimbison, & Te, 2003; Levi, Te, Randimbison, Maspoli, & La Vecchia, 2006; Min et al., 2019; Morris, Sikora, Hayes, Patel, & Ganly, 2011; Neumann et al., 2016; Ooft & van Ipenburg, 2016; Preyer, Concin, Obermair, Concin, & Ulmer, 2017; Scélo et al., 2007; Sikora et al., 2009; Söderholm et al., 1994; Suk et al., 2018; Warnakulasuriya et al., 2003) met the eligibility criteria for this systematic review.…”