HOEKSTRA, E J et al Publication Date 2000 p 315-320 Serial Title:Bulletin of the World Health Organization Serial Part:Vol 78 No 3 View webpage for full text https://www.who.int/docstore/bulletin/pdf/2000/issue3/bu0442.pdf Keywords Health; diseases: communicable diseases (CD); poliomyelitis; systems: medical products vaccines and technologies; treatment and prevention; Programme/ Project; programmes and projects; Research; data collection Regional Focus Western Pacific (WPRO) Country focus China Language English Type of material text Content type research; article Log in or register to post comments