The American journal of gastroenterology 1999; 94:2866-73

Borovicka Jan, Fried M, Spinas G A, Boesiger P, Crelier G, Kreiss C, Fraser R, Kunz P, Lehmann R, Schwizer W

Gut 1997; 41:500-4

Schwizer W, Borovicka Jan, Kunz P, Fraser R, Kreiss C, D'Amato M, Crelier G, Boesiger P, Fried M

The American journal of physiology 1996; 271:G217-22

Schwizer W, Fraser R, Borovicka Jan, Asal K, Crelier G, Kunz P, Boesiger P, Fried M

Digestive diseases and sciences 1994; 39:20S-23S

Fraser R, Schwizer W, Borovicka Jan, Asal K, Fried M

Digestive diseases and sciences 1994; 39:101S-103S

Schwizer W, Fraser R, Borovicka Jan, Crelier G, Boesiger P, Fried M