“…In 1955 Unger reported one case and, reviewing the world's literature, stated that by then there were only seventy-nine cases. This figure was confirmed by others (Bucklin & Myint, 1959;Borrow & Schreiber, 1961 ;Loh & Loh, 1962). Bucklin & Myint (1959), however, reported their case as the eightieth, whilst in Loh's (Loh & Loh, 1962) estimation this was the eighty-third case reported in the literature.…”