A study of the nasopharyngeal bacterial flora of different groups of persons observed in London and south-east England during the years 1930-1937 / by Edith Straker, A. Bradford Hill and R. Lovell, together with some observations on the occurrence of H. influenzae in the trachda, by A.B. Rosher and W.T. Cole.
Straker, Edith Alice. | Date: 1939