Previous studies showed that obtaining social support in OHCs can help people feel better (Dunkel-Schetter, 1984;Maloney-Krichmar and Preece, 2005;Beaudoin and Tao, 2007;Vilhauer, 2009;Qiu et al., 2011).
of online interactions in OHCs, a huge volume of user-generated content exists today on various issues/problems related to specific diseases.