Volume 17, Number 12—December 2011
Dispatch
Knowledge of Avian Influenza (H5N1) among Poultry Workers, Hong Kong, China
Figure

Figure. Location of live poultry wet markets (open food stall markets) in relation to population density, Hong Kong, China, June–November 2009.
Medline reports the first author should be "Olsen SJ" not "Olsen S" in reference 10 "Olsen, Laosiritaworn, Pattanasin, Prapasiri, Dowel, 2005".