URL: www.sciencedire ... http://www.sciencedirect.com/science/journal/00029270
URL: www.amjgastro.c ... http://www.amjgastro.com/
URL: www3.interscien ... http://www3.interscience.wiley.com/journal/117955841/home
URL: firstsearch.ocl ... http://firstsearch.oclc.org
URL: firstsearch.ocl ... http://firstsearch.oclc.org/journal=0002-9270;screen=info;ECOIP
Wikipedia: de.wikipedia.or ... https://de.wikipedia.org/wiki/American_Journal_of_Gastroenterology
Wikipedia: en.wikipedia.or ... https://en.wikipedia.org/wiki/The_American_Journal_of_Gastroenterology
SUDOC: www.sudoc.fr/03 ... http://www.sudoc.fr/038662531
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q7713501
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/dwezbqtlmjaolkf5yflrgm4aty
URL: www.sciencedire ... http://www.sciencedirect.com/science/journal/00029270
URL: www.amjgastro.c ... http://www.amjgastro.com/
URL: www3.interscien ... http://www3.interscience.wiley.com/journal/117955841/home
URL: firstsearch.ocl ... http://firstsearch.oclc.org
URL: firstsearch.ocl ... http://firstsearch.oclc.org/journal=0002-9270;screen=info;ECOIP
Wikipedia: de.wikipedia.or ... https://de.wikipedia.org/wiki/American_Journal_of_Gastroenterology
Wikipedia: en.wikipedia.or ... https://en.wikipedia.org/wiki/The_American_Journal_of_Gastroenterology
SUDOC: www.sudoc.fr/03 ... http://www.sudoc.fr/038662531
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q7713501
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/dwezbqtlmjaolkf5yflrgm4aty
Google: www.google.com/ ... https://www.google.com/search?q=ISSN+"0002-9270"
Bing: www.bing.com/se ... https://www.bing.com/search?q=ISSN+%220002-9270%22
Yahoo: search.yahoo.co ... https://search.yahoo.com/search?p=ISSN%20%220002-9270%22
Koninklijke Bibliotheek: opc4.kb.nl/DB=1 ... http://opc4.kb.nl/DB=1/LNG=EN/CMD?ACT=SRCHA&IKT=8&TRM=0002-9270
CROSSREF: search.crossref ... https://search.crossref.org/?q=+0002-9270
Pubmed: pubmed.ncbi.nlm ... https://pubmed.ncbi.nlm.nih.gov/?term=%220002-9270%22%5BJournal%5D&sort=
