Fig. 1

Flow charts illustrating derived study populations for each pathogen of interest: a) Helicobacter Pylori; b)Toxoplasma gondii c) Hepatitis B Virus. NHANES 1999-2012
Flow charts illustrating derived study populations for each pathogen of interest: a) Helicobacter Pylori; b)Toxoplasma gondii c) Hepatitis B Virus. NHANES 1999-2012