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| National Library of Medicine/PubMed (Medline) | http://www.ncbi.nlm.nih.gov/entrez/query.fcgi | |||
| The Cochrane Collaboration | http://www.cochrane.de | |||
| Physiotherapy Evidence Database (PEDro) | http://ptwww.cchs.usyd.edu.au/pedro/ | |||
| Akademie zur Medizinischen Fort- und Weiterbildung | http://www.akademie-bad-saeckingen.de | |||