Severe outcomes are associated with genogroup 2 genotype 4 norovirus outbreaks: a systematic literature review.
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
Desai R, Hembree CD, Handel A, Matthews JE, Dickey BW, McDonald S, Hall AJ, Parashar UD, Leon JS, Lopman B
2012-04-12