Are amoxycillin and folate inhibitors as effective as other antibiotics for acute sinusitis? A meta-analysis.
de Ferranti SD; Ioannidis JP; Lau J; Anninger WV; Barza M; BMJ (Clinical Research Ed.), 1998, vol. 317, issue 7159, p 632, ISSN 09598138. ISBN 09598138.
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