“…Previous literature has indicated that parental attitudes toward the HPV vaccine are positive (Olshen et al, 2005;Jasper et al, 2011;Chan et al, 2012), while the intention to vaccinate their daughters against HPV and HPV vaccine acceptance is high (Becker-Dreps Eet al, 2010;Oh et al, 2010;Jasper et al, 2011;Chan et al, 2012;Coleman et al, 2012;Ortashi et al, 2014). Nevertheless, limited knowledge of the HPV vaccines was consistently identified in several studies (Mishra et al, 2010;Alsaad et al, 2012;Chan et al, 2012;Paul et al, 2012;Tonguc et al, 2013). To date, very little is known about the difference between bivalent and quadrivalent vaccines in terms of acceptance.…”