“…Many workers have sought a solution by sending questionnaires to patients previously seen and documented. Lister [3], Bowers [4], and Walter [5], are all impressed with the high percentage of spontaneous cures whilst Pfahler [6], and Watson and McCarthy [1], amongst others, are entirely unconvinced. Pfahler states that he has never seen spontaneous disappearance whilst Watson and McCarthy record only 3 cases out of a series of 1,056.…”