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Journal, BioMed Central, London, UK
David A. Hatch, Loyola University Stritch School of Medicine, Chicago, USA, last update 2003
Merck Sharp & Dohme Corp. Kenilworthm USA
Karolinska Institutet, Stockholm, Sweden
National Guideline Clearinghouse
in French, P. Perrin
Journal, in Czech
e-Medicine
Open Directory Project
American Urological Association
Strana 2 z 3