“…In the survey of the literature we found 87 cases of spontaneous pneumothorax originating from 32 families [Atwood, 1926;Bachmann, 1940;Brock, 1948;Berlin, 1950;Boyd, 1957;Clarke, 1964;Delaney et al, 1974;Eriksson, 1965;Farber, 1921;Gotzsche, 1933;Ginzburg and Medvedovskii, 1976;Gibson, 1977;Hinson et al, 1981;Inoue et al, 1982;Kusan, 1925;Leites and Tannenbaum, 1960;Leman and Dines, 1973;Morawitz, 1933;Muler, 1934;Pierce et al, 1980;Rottenberg and Golden, 1949;Rodriguez, 1956;Rashid et al, 1986;Sharpe et al, 1980;Sugiyama et al, 1986;Taddei, 1968;Wilson and Aysworth, 19791. In 14 of these families sufficient details were given in order to allow construction of a pedigree (Fig.…”