http://www.givenimaging.com  (Capsula Atlas)
 

http://www.giatlas.com (World Gastrointestinal Atlas of Endoscopy)
 

http://www.gastrosource.com/kisweb/atlas.asp ( Interactive Atlas of Gastrointestinal Endoscopy)
 

http://gastroatlas.com (GastroAtlas online)
 

http://www.endoatlas.com (Atlas of Gastrointestinal Endoscopy)
 

http://www.fisterra.com/recursos_web/ingles/i_revistas.htm
 

http://highwire.stanford.edu/list/freeart.dtl Abdominal Imaging

http://www.link.springer.de/link/service/journals/00261/index.htm
 

ACS American Cáncer Society
http://www.cancer.org
 

AJP Gastrointestinal and Liver Physiology
http://ajpgi.physiology.org/
 

AJP Gastrointestinal and Liver Physiology
http://ajpgi.physiology.org/
 

Alimentary Pharmacology and Therapeutics
http://www.blacksci.co.uk/products/journals/jnltitle.htm
 

Digestion
http://www.karger.ch/journals/dig/dig_jh.htm
 

Digestive Disease
http://www.karger.ch/journals/ddi/ddi_jh.htm
 

Digestive Disease and Science
http://www.digestive-diseases.com/index.htm
 

Digestive Surgery
http://www.karger.ch/journals/dsu/dsu_jh.htm
 

Disease of the Colon and Rectum
http://www.discolrect.com/
 

Endoscopy
http://www.esge.com/endoscopy.html
 

European Journal of Gastroenterology and Hepatology
http://www.eurojgh.com
 

FDA
http://www.fda.gov
 

Gastroenterologie Clinique et Biologique
http://www.e2med.com/display_journal.asp
 

Gastrointestinal Endoscopy
http://www.mosby.com
 

Gut
http://gut.bmjjournals.com
 

Hepatitis Weekley
http://www.newsrx.com/main/home-top-news.asp
 

Hepato-Gastroenterology
http://www.igsc.gr/
 

International Journal of Colorectal Disease
http://www.blacksci.co.uk/products/journals/00384/index.htm
 

Journal of Gastroenterology and Hepatology
http://www.blacksci.co.uk/products/journals/xjgh.htm
 

Liver Transplantation and Surgery
http://lts.aasldjournals.org/
 

OMS  Organización Mundial de la Salud
http://www.who.org
 

Revista de la Sociedad Valenciana de Patología Digestiva
http://www.masson.es/index.asp
 

Revista Española de Enfermedades Digestivas
http://www.masson.es/index.asp