Citation

Speight N. Br. Med. J. BMJ 1989; 298(6677): 879-881.

Comment In:

BMJ 1989;298(6681):1179-80

Copyright

(Copyright © 1989, BMJ Publishing Group)

DOI

unavailable

PMID

2497833

PMCID

PMC1836122

Abstract

[Abstract unavailable]

Language: en