Correction

1917 BMJ (Clinical Research Edition)  
CORRESPONDENTS who wish notice to be taken of their communications should authenticate them with their names-of course not necessarily for publication. AUTHORS desiring reprints of their articles published in the BRITISH MEDICAL JOU:RNAL ar-e requested to communicate with the Office, 429, Strand, W.C.2, on receipt of proof. The telegraphic addresses of the BRITISH MEDICAL ASSOCIATION and JOURNAL are: 1. EDITOR of the BRITISH MEDICAL JOURNAL, Aitiology,
doi:10.1136/bmj.2.2963.502-a fatcat:5nvklrzw3vfctb4aplf5hn22wm