“…In a recent review of the literature, Ponticelli, Arganini and Cionini (1981) accept 14 such cases although previous authors (Atwood, Miller and Nelson, 1966) had seriously questioned the acceptability of 2 of his cited cases (Rottino and Hoffman, 1950;Lamache et al, 1954). Indeed, we would question the criteria on which 3 further published cases (Foon, Filderman and Gale, 1981;Razis, Diamond and Craver, 1969) are based.…”