@ARTICLE{10665-210408, author = {World Health Organization}, journal = {Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire}, title = {Weekly Epidemiological Record, 1955, vol. 30, 42 [full issue]}, volume = {30}, year = {1955}, number = {42}, type = {Journal / periodical articles}, pages = {465 - 474} }