Source:
Revista ecuatoriana de higiene y medicina tropical [Rev Ecuat Hig Med Trop] 1963 Jan-Dec; Vol. 20, pp. 37-42.Publisher: Instituto Nacional De Higiene Y Medicina Tropical Leopoldo Izquieta Perez Country of Publication: Ecuador NLM ID: 9427215 Publication Model: Print
Source:
The Journal of hygiene [J Hyg (Lond)] 1960 Sep; Vol. 58, pp. 307-19.Publisher: Cambridge University Press Country of Publication: England NLM ID: 0375374 Publication Model: Print Cited Medium: Print ISSN:
Source:
Comptes rendus hebdomadaires des seances de l'Academie des sciences [C R Hebd Seances Acad Sci] 1952 Apr 28; Vol. 234 (18), pp. 1810-2.Publisher: Académie des Sciences, Paris Country of Publication: France NLM ID: 7501108 Publication Model: Print Cited Medium: Print ISSN: