Results 251 to 256 of about 124,541 (256)
Some of the next articles are maybe not open access.

A Placebo-Controlled Trial of a Pertussis-Toxoid Vaccine

New England Journal of Medicine, 1995
exaly  

Pertussis treated with pertussis antigen

The Journal of Pediatrics, 1942
openaire   +1 more source

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