Abstract
References
1.
Bertelsen
S
(1958 ) Nordisk Medicin
60 , 1602 –1604
2.
McHugh
H E
(1963 ) Archives of Otolaryngology
78 , 443 –455
3.
Taverner
D
(1966 ) British Medical Journal
i , 391 –393
4.
Fisch
U
Esslen
E
(1972 ) Archives of Otolaryngology
95 , 335