Compound-heterozygous mutations in the plasminogen gene predispose to the development of ligneous conjunctivitis. - Schuster,V.; Seidenspinner,S.; Zeitler,P.; Escher,C.; Pleyer,U.; Bernauer,W.; Stiehm,E.R.; Isenberg,S.; Seregard,S.; Olsson,T.; Mingers,A.M.; Schambeck,C.; et al. (Blood, 1999)