An Observational Study of Severe Pertussis in 100 Infants =120 Days of Age.

Cherry JD, Wendorf K, Bregman B, Lehman D, Nieves D, Bradley JS, Mason WH, Sande-Lopez L, Lopez M, Federman M, Chen T, Blumberg D, Johnston S, Schwenk HT, Weintrub P, Quinn KK, Winter K, Harriman K