Abstract

References
1.
Beeson P.
,
McDermott W.
, &
Wyngarden J.B.
(1979 ) Textbook of Medicine. W B Saunders , Philadelphia ; pp 1278 –1279
2.
Oakley G.D.G.
,
McGarry K.
,
Limb D.G.
, &
Oakley C.M.
(1979 ) British Medical Journal i , 1749 –1750
