@ARTICLE{10665-228576, author = {World Health Organization}, journal = {Weekly Epidemiological Record = Relevé épidémiologique hebdomadaire}, title = {Weekly Epidemiological Record, 1992, vol. 67, 51-52 [full issue]}, volume = {67}, year = {1992}, number = {51-52}, type = {Journal / periodical articles}, pages = {381 - 388} }