Professor of Biological Chemistry, Institute of Biological Chemistry, University of Trieste, Italy.
Reprint requests to Professor Benedetto de Bernard, Istituto di Chimica Biologica, Via A. Valerio, 32, Universirà degli Studi, 34127 Trieste, Italy.
Supported by the Italian National Research Council and University of Trieste Grants.
This paper is dedicated to Roldolfo Amprino, who has made many fundamental contributions in bone research, on his 70th birthday.
Received: May 18, 1981.