L. Barbara
G. A. D. Haslewood
Herman van Belle
K. W. Heaton
Falk Symposium (120th 2000 Hague, Netherlands)
Henry Danielsson
Bile Acid Meeting (4th 1976 Basel, Switzerland)
Bile Acid Meeting (7th 1982 Basel, Switzerland)
Bile Acid Meeting (18th 2004 Stockholm, Sweden)
T. C. Northfield
Bile Acid Meeting (15th 1998 Titisee, Germany)
Bile Acid Meeting (13th 1994 San Diego, Calif.)
Falk Symposium (129th 2002 Freiburg, Germany)
Kurt Einarsson
Bile Acid Meeting Freiburg i.B. 1978.
David Kritchevsky
Falk Symposium (155th 2006 Freiberg, Germany)
International Symposium on Bile Acids (7th 1982 Cortina d'Ampezzo, Italy)
P. Nair