“…However, despite such challenges a variety of successful projects about male clients have been undertaken, using a range of methods for access, recruitment and data collection. These have included using sex worker accounts or referrals (Lever and Dolnick, 2000;O'Connell Davidson, 1996;Shumka et al, 2017); working through sexual health clinics (Ward et al, 2005); advertising in brothels or training brothel staff to conduct surveys (Birch, 2015;Plumridge et al, 1997;Xantidis and McCabe, 2000); undertaking on-street interviews (McKeganey and Barnard, 1996); using media advertisements (Birch 2015;Grenz, 2005); advertising in sports clubs (Chen, 2017); drawing on large scale national survey data (Monto, 1999;Jones et al, 2014;Joseph and Black, 2012); police interviews for secondary data (Sharpe, 1998); ethnographies of sex work spaces (Durant and Couch, 2019;Hoigard and Finstad, 1992); using data gathered from clients on prevention or education programmes (Joseph and Black, 2012;Wahab, 2006); content analysis of commercial sex websites (Horswill and Weitzer, 2018;Soothill and Sanders, 2005;Earle and Sharp, 2008;Holt and Blevins, 2007;Milrod and Monto, 2012;Pettinger 2011;Pruitt and Krull, 2011); engaging with the online sex work community to recruit for participants (Birch et al, 2017;Jin and Xu, 2016;Jones and Hannem, 2018;Milrod and Monto, 2012;Sanders, 2008a); and advertising via non-sex work specific classified adverts (Atchison and Burnett, 2016;Huysman, 2018).…”