Intended for healthcare professionals

Practice Observed

Duration of effectiveness of pertussis vaccine: evidence from a 10 year community study

Br Med J (Clin Res Ed) 1988; 296 doi: https://doi.org/10.1136/bmj.296.6622.612 (Published 27 February 1988) Cite this as: Br Med J (Clin Res Ed) 1988;296:612