MURRAY, R Simultaneous immunization against diphtheria, tetanus, and pertussis; problems inherent in the production of a good multiple antigen. [electronic resource] - American journal of public health and the nation's health Jun 1950 - 686-90 p. digital Publication Type: Journal Article ISSN: 0002-9572 Standard No.: 10.2105/ajph.40.6.686 doi Subjects--Topical Terms: DiphtheriaHumansImmunizationTetanusTetanus ToxoidVaccinationWhooping Cough