Abstract
References
1.
Amin R.
(1983 ) Journal of the Royal Society of Medicine 76 , 83 –84
2.
Connolly R.C.
(1982 ) Journal of the Royal Society of Medicine 75 , 160 –165
3.
Mantell B.S.
(1973 ) British Journal of Diseases of the Chest 67 , 315 –317
4.
(1982 ) Journal of the Royal Society of Medicine 75 , 214
5.
Rowland Payne C.M.E.
(1981 ) Journal of the Royal Society of Medicine 74 , 814 –818