[Tremendous progress but still also problems].
.
Peter
P
Stiefelhagen
D000818:Animals; D005858:Germany; D006521:Hepatitis, Chronic / Q000453:epidemiology* / Q000517:prevention & control*; D006525:Hepatitis, Viral, Human / Q000453:epidemiology* / Q000517:prevention & control / Q000635:transmission*; D006801:Humans; D011379:Prognosis; D012307:Risk Factors; D014171:Transients and Migrants; D014195:Travel