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URL: archsurg.ama-as ... http://archsurg.ama-assn.org/
URL: www.Jamasurg.co ... http://www.Jamasurg.com
Wikipedia: de.wikipedia.or ... https://de.wikipedia.org/wiki/JAMA_Surgery
Wikipedia: en.wikipedia.or ... https://en.wikipedia.org/wiki/JAMA_Surgery
SUDOC: www.sudoc.fr/16 ... http://www.sudoc.fr/167049577
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q4787309
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