Paunio, Mikko; Peltola, Heikki; Davidkin, Irja; Virtanen, Martti; Heinonen, Olli P.; Valle, Martti. Explosive School-based Measles Outbreak Intense Exposure May Have Resulted in High Risk, Even among Revaccinees. Am J Epidemiol. 1998, 148 (11): 1103–10. PMID 9850133. doi:10.1093/oxfordjournals.aje.a009588.
Paunio, Mikko; Peltola, Heikki; Davidkin, Irja; Virtanen, Martti; Heinonen, Olli P.; Valle, Martti. Explosive School-based Measles Outbreak Intense Exposure May Have Resulted in High Risk, Even among Revaccinees. Am J Epidemiol. 1998, 148 (11): 1103–10. PMID 9850133. doi:10.1093/oxfordjournals.aje.a009588.