editors, Sigurd Nitter-Hauge, David Allison ; associate editor, George G. Hartnell
Excerpta Medica , Sole distributors for the USA and Canada, Elsevier Science Pub. Co.1991International congress series
no. 922 , Nycomed scientific series
no. 3
Excerpta Medica , Sole distributors for the USA and Canada, Elsevier Science Pub. Co.1990Nycomed scientific series
no. 2 , International congress series
no. 909