Hepatitis: reducing the risks.
Welby
S
S
Liverpool School of Tropical Medicine.
D014943:Global Health; D006506:Hepatitis A / Q000453:epidemiology / Q000517:prevention & control*; D006509:Hepatitis B / Q000453:epidemiology / Q000517:prevention & control*; D006801:Humans; D012307:Risk Factors; D014195:Travel; D014611:Vaccination