Enteric Fever Carriers, by CAPTAIN A. H. HAYES, M.R.C.P., D.P.H., R.A.M.C., Specialist Sanitary Officer, Northern Command, York

1913 Journal of the Royal Sanitary Institute  
doi:10.1177/146642401303400203 fatcat:kvt52w2ianfgld3junfpwhkbry