523,665 INTERNATIONAL An International Symposium held in Stockholm, Sweden, March 9-10, 1973. Arranged by Boehringer Ingelheim. Session I: Experimental studies on bronchial secretion.Chairman: B. G. Simonsson, Session II: Therapeutical aspects of pathological bronchial secretion. Chairman: E. Tala. Copenhagen 1974 Munksgaard 8° s.89,ilustr. Scandinavian Journal of Respiratory Diseases suppl. 90.