@ARTICLE{10665-214832, author = {World Health Organization}, journal = {Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire}, title = {Weekly Epidemiological Record, 1965, vol. 40, 18 [full issue]}, volume = {40}, year = {1965}, number = {18}, type = {Journal / periodical articles}, pages = {225 - 240} }