Digestive System Medical Illustrations

Medical-Artist.com, UK

First Principles of Gastroenterology 1

Book, A. B. R. Thomson, CAPstone (Canadian Academic Publishers Ltd), North Mankato, USA, 2012

Gastroenteritis Viruses

Book, John Wiley & Sons, Inc., Hoboken, USA, 2008

Gastroenterology 1

The Cleveland Clinic Foundation, Lyndhurst, USA

MiniEncyklopedie laboratorních metod v gastroenterologii

Textbook, P. Kocna, 1. LF KU Prague, in Czech

Gastroenterology Societies

Blackwell Publishing Ltd, Oxford, UK

Gastrointestinal Disorders

Merck Manual, Merck Sharp & Dohme Corp., Kenilworth, USA

Gastrolab

Petr Kocna , I. LF KU Praha, Czech Republic, in Czech

Digestive Diseases (2)

National Library of Medicine, Bethesda, USA

Directory of Open Access Journals (2)

Journal, DOAJ, Kastrup, Denmark

Diseases, Conditions and Tests (2)

RxList Inc., San Clemente, USA

Doctors Guide (2)

 Doctor's Guide Publishing Limited

European Eating Disorders Review (2)

Journal, John Wiley & Sons, Inc., Hoboken, USA 

Gastroenterológia (2)

MUDr. Jozef Klucho, Nové Zámky, Slovakia, in Slovak

Gastroenterology Articles (2)

Emedicine.medscape  WebMD LLC, New York, USA

Health Topics (2)

Medline Plus, US National Library of Medicine, Bethesda, USA

Journal of Clinical Investigation (2)

Journal, PubMed Central, National Library of Medicine, Bethesda, USA

Live Surgery Portal (2)

BroadcastMed, Inc., Farmington, USA

Mayo Clinic Medical Professional Video Center (2)

Mayo Clinic, Rochester, MN, USA

Images in Emergency Medicine (2)

Elsevier B.V., Amsterdam, Netherlands