Tsolia, MN Psarras, S Bossios, A Audi, H Paldanius, M and Gourgiotis, D Kallergi, K Kafetzis, DA Constantopoulos, A Papadopoulos, NG, Etiology of community-acquired pneumonia in hospitalized school-age
children: Evidence for high prevalence of viral infections, Clinical Infectious Diseases, (39), 681-686, 2004, OXFORD UNIV PRESS INC, 1058-4838, 1537-6591