Citation

Wyndham CH, Williams CG, Morrison JF, Heyns AJ, Siebert J. Br. J. Ind. Med. 1968; 25(1): 22-39.

Copyright

(Copyright © 1968, British Medical Association)

DOI

unavailable

PMID

5642646

PMCID

PMC1008660

Abstract

[Abstract unavailable]

Language: en