Librería Samer Atenea
Kálamo Books
Librería Elías (Asturias)
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Proceedings of a symposium presented at the University of Southern California, Department of Pathology and the Kenneth J. Norris Cancer Hospital and Research Institute, Los Angeles, U.S.A., November 16-17, 1984