TY - JOUR DP - http://iris.who.int/ DB - WHO IRIS EP - 212 AU - World Health Organization LA - zh UR - https://iris.who.int/handle/10665/241575 JF - Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire DA - 2010 PY - 2010 IS - 22 SP - 197 TI - Weekly Epidemiological Record, 2010, vol. 85, 22 [full issue] VL - 85 ER -