Abstract
References
1.
Tanner
N C
, (1951 ) Edinb. med. J.
58 , 288 .
2.
Tanner
N C
, (1954 ) Postgrad. med. J.
30 , 523 .
3.
Williams
J A
, (1964 ) Brit. J. Surg.
54 , 125 .