found: Virologic examination of gastro-enteritis outbreaks, 1996:t.p. (M.P.G. Koopmans; RIVM, Research Lab. for Infectious Diseases)
found: Food-borne viruses, c2008:E-CIP t.p. (Marion P.G. Koopmans; Laboratory for Infectious Diseases and Screening, Centre for Infectious Diseases Control, National Institute for Public Health and the Environment, Bilthoven and ErasmusMC, Rotterdam, The Netherlands)
found: Virus de transmisiĆ³n alimentaria, 2010:title page (Marion P. G. Koopmans, National Institute for Public Health and the Environment, Bilthoven, The Netherlands)