Citation

Rollings T, Hoyland M, Purser R, Warren J, Middleton J, Pollock G. Br. Med. J. (Clin. Res. Ed.) 1987; 295(6590): 71-72.

Copyright

(Copyright © 1987, British Medical Association, Publisher BMJ Publishing Group)

DOI

unavailable

PMID

3113638

PMCID

PMC1246955

Abstract

[Abstract unavailable]

Language: en