TY - JOUR DP - http://iris.who.int/ DB - WHO IRIS EP - 233 AU - World Health Organization LA - en LA - fr UR - https://iris.who.int/handle/10665/212506 JF - Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire DA - 1929 PY - 1929 IS - 21 SP - 225 TI - Weekly Epidemiological Record, 1929, vol. 04, 21 [full issue] VL - 04 ER -