TY - GEN AU - Baeza Bacab,Manuel A AU - Romero Tapia,Sergio AU - Graham Zapata,Luis F AU - Albertos Alpuche,Nelly E TI - [Increase in frequency of asthma in school children from Villahermosa, Tabasca, Mexico] SN - 0002-5151 PY - 2004///0809 KW - Asthma KW - epidemiology KW - Child KW - Cross-Sectional Studies KW - Female KW - Humans KW - Male KW - Mexico KW - Prevalence KW - Surveys and Questionnaires N1 - Publication Type: Comparative Study; English Abstract; Journal Article ER -