An original method of obtaining sputum from infants and children: With reference to the incidence of pneumococci in the nasopharynx
- 30 November 1939
- journal article
- Published by Elsevier in The Journal of Pediatrics
- Vol. 15 (5) , 640-645
- https://doi.org/10.1016/s0022-3476(39)80132-9