A placebo-controlled clinical trial of nadolol in the prophylaxis of growth of small esophageal varices in cirrhosis 1 1Members of the Gruppo Triveneto per l’Ipertensione Portale are as follows. Steering committee: A. Gatta and C. Merkel (University of Padua, Padua, Italy); V. Donadon (General Hospital of Pordenone, Pordenone, Italy); P. Spandri (General Hospital of Thiene, Thiene, Italy); F. Tremolada (General Hospital of Belluno, Belluno, Italy); and G. Marin (General Hospital of Dolo, Dolo, Italy). Clinical investigators: E. Bernardinello, L. Chemello, and F. Vescovi (University of Padua, Padua, Italy); G. Marin (General Hospital of Dolo, Dolo, Italy); P. Spandri (General Hospital of Thiene, Thiene, Italy); L. Zancanella (General Hospital of Bolzano, Bolzano, Italy); C. Costan (General Hospital of Chioggia, Chioggia, Italy); C. Mazzaro (General Hospital of Pordenone, Pordenone, Italy); P. Torboli (General Hospital of Trento, Trento, Italy); and F. Tremolada (General Hospital of Belluno, Belluno, Italy). Endoscopists: P. Angeli (University of Padua, Padua, Italy); R. Marin (General Hospital of Dolo, Dolo, Italy); P. Zanella (General Hospital of Thiene, Thiene, Italy); M. Felder (General Hospital of Bolzano, Bolzano, Italy); G. Cavallarin (General Hospital of Chioggia, Chioggia, Italy); C. Donada (General Hospital of Pordenone, Pordenone, Italy); I. Avancini (General Hospital of Trento, Trento, Italy); and G. Sebastianelli (General Hospital of Belluno, Belluno, Italy). Statistical analysts: M. Bolognesi, B. Bellini, and C. Merkel (University of Padua, Padua, Italy).