@ARTICLE{10665-241342, author = {World Health Organization}, journal = {Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire}, title = {Weekly Epidemiological Record, 2009, vol. 84, 22 [full issue]}, volume = {84}, year = {2009}, number = {22}, type = {Journal / periodical articles}, pages = {197 - 212} }