Introduction to the regional workshops.
Slusarczyk
J
J
National Institute of Hygiene, Epidemiology Department, Chocimska 24 str., 00-791, Warsaw, Poland.
Magdzik
W
W
D000349:Africa; D001210:Asia, Southeastern; D005060:Europe; D006266:Health Education; D006506:Hepatitis A / Q000517:prevention & control*; D006509:Hepatitis B / Q000517:prevention & control*; D006801:Humans; D007843:Latin America; D008877:Middle East; D014611:Vaccination