Show 50 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author="Hoffmans, Ruth" or (type exact bookEditor and editor="Hoffmans, Ruth") Add to list Journal Article A1 open access Reliability of EP3OS symptom criteria and nasal endoscopy in the assessment of chronic rhinosinusitis - a GA2LEN study Peter Tomassen (UGent) , Roger Newson, Ruth Hoffmans, Jan Lötvall, Lars-Olaf Cardell, Maria Gunnbjörnsdóttir, Trine Thilsing, Paolo Matricardi, Ursula Kramer, Joanna Makowska, et al. (2011) ALLERGY. 66(4). p.556-561 Add to list Conference Paper C3 GA²LEN study: prevalence of chronic rhinosinusitis in Europe by EP3OS criteria Deniz Hastan, Wytske Fokkens, Claus Bachert (UGent) , Elina Toskala, Ruth Hoffmans, Peter Tomassen (UGent) , Jurriaan Kok, Yvette Smulders, James Potts, Roger Newson, et al. (2010) ERAM/SERIN, Abstracts.