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Supplement: Sentinel Practice Networks: Opportunities and Limitations || Programme for the Surveillance of Influenza in Portugal: Results of the Period 1990-1996
Isabel Marinho Falcão, H. Rebelo de Andrade, Anabela Simões Santos, M. Teresa Paixão and José Marinho FalcãoVolume:
52
Year:
1998
Language:
english
Journal:
Journal of Epidemiology and Community Health (1979-)
DOI:
10.2307/25568822
File:
PDF, 745 KB
english, 1998