Grond-Ginsbach et al. (2002) searched for mutations in the COL5A2 gene (120190) in 10 patients with spontaneous cervical artery dissections. Although they identified mutations in 3 of the patients, none was thought to ... - Exclusion Studies Grond-Ginsbach et al. (2002) searched for mutations in the COL5A2 gene (120190) in 10 patients with spontaneous cervical artery dissections. Although they identified mutations in 3 of the patients, none was thought to be disease causing. They concluded that COL5A2 is unlikely to be a major candidate gene for spontaneous cervical artery dissections.