(1) This paper is a compressed version of a tutorial which was presented during the 1986 training course of the International Pharmaco-EEG Group, in Santa Margherita Ligure, Italy.
(2) This tutorial was presented during the 1986 training course of the International Pharmaco-EEG Group (IPEG) in Santa Margherita Ligure, Italy.
(3) A survey of literature data on male breast cancer is reported: on this basis the authors report their experience of five cases observed between 1980 and 1989 at Ospedale "S. Corona" Pietra Ligure, out of 500 female breast cancers treated in the same period.