URL: doh.tbzmed.ac.i ... http://doh.tbzmed.ac.ir/Default.aspx
SUDOC: www.sudoc.fr/18 ... http://www.sudoc.fr/188909257
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q50808270
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/nyov7crtenhqldsjocvh3mixna
URL: doh.tbzmed.ac.i ... http://doh.tbzmed.ac.ir/Default.aspx
SUDOC: www.sudoc.fr/18 ... http://www.sudoc.fr/188909257
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q50808270
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/nyov7crtenhqldsjocvh3mixna
Google: www.google.com/ ... https://www.google.com/search?q=ISSN+"2423-6640"
Bing: www.bing.com/se ... https://www.bing.com/search?q=ISSN+%222423-6640%22
Yahoo: search.yahoo.co ... https://search.yahoo.com/search?p=ISSN%20%222423-6640%22
CROSSREF: search.crossref ... https://search.crossref.org/?q=+2423-6640