Re: "Confounding in studies of adverse reactions to vaccines".
Ray
W A
WA
Griffin
M R
MR
D015982:Bias; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D007223:Infant; D013398:Sudden Infant Death / Q000209:etiology; D014612:Vaccines / Q000009:adverse effects*
D014612:Vaccines