“…The most recent QPS Opinion is cited by Adimpong et al (2012) and Bourdichon et al (2012a,b). In other publications this is not always the case (Ambalam et al, 2012;Baffoni et al, 2012;Bonaterra et al, 2012;Bosch et al, 2012;Chaabouni et al, 2012;Christoffersen et al, 2012;Danilova et al, 2012;El-Sharoud et al, 2012;Gálvez et al, 2012;Gardana et al, 2012;Hill, 2012;Maldonado et al, 2012;Nikolic et al, 2012;Permpoonpattana et al, 2012;Popova et al, 2012;Salminen and van Loveren, 2012;Songisepp et al, 2012;Stahl and Barrangou, 2012;Thumu and Halami, 2012;Vogel et al, 2011;Xu et al, 2012).…”