Comparative trial to assess the reactogenicity of the diphtheria-tetanus-acellular pertussis (DTPa) vaccine plus Haemophilus influenzae type B (Hib) conjugate vaccine and that of the diphtheria-tetanus-whole cell pertussis (DTPw) vaccine plus Hib co

Comparative trial to assess the reactogenicity of the diphtheria-tetanus-acellular pertussis (DTPa) vaccine plus Haemophilus influenzae type B (Hib) conjugate vaccine and that of the diphtheria-tetanus-whole cell pertussis (DTPw) vaccine plus Hib co