URL: www.doyma.es/va ... http://www.doyma.es/vac/
URL: www.elsevier.es ... http://www.elsevier.es/es-revista-vacunas-investigacion-practica-72
SUDOC: www.sudoc.fr/06 ... http://www.sudoc.fr/067195326
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q68822961
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/lq4hthatunc3xkfawkvyi7lulm
URL: www.doyma.es/va ... http://www.doyma.es/vac/
URL: www.elsevier.es ... http://www.elsevier.es/es-revista-vacunas-investigacion-practica-72
SUDOC: www.sudoc.fr/06 ... http://www.sudoc.fr/067195326
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q68822961
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/lq4hthatunc3xkfawkvyi7lulm
Google: www.google.com/ ... https://www.google.com/search?q=ISSN+%221578-8857%22
Bing: www.bing.com/se ... https://www.bing.com/search?q=ISSN+%221578-8857%22
Yahoo: search.yahoo.co ... https://search.yahoo.com/search?p=ISSN%20%221578-8857%22
Koninklijke Bibliotheek: opc4.kb.nl/DB=1 ... http://opc4.kb.nl/DB=1/LNG=EN/CMD?ACT=SRCHA&IKT=8&TRM=1578-8857
CROSSREF: search.crossref ... https://search.crossref.org/?q=+1578-8857
Pubmed: pubmed.ncbi.nlm ... https://pubmed.ncbi.nlm.nih.gov/?term=%221578-8857%22%5BJournal%5D&sort=