Authors: Lopez-Alvarenga, JC Reyes-Diaz, S Castillo-Martinez, L Davalos-Ibanez, A Gonzalez-Barranco, J

Citation: Jc. Lopez-alvarenga et al., Reproducibility and sensitivity of a physical activity questionnaire in Mexican people., SALUD PUB M, 43(4), 2001, pp. 306-312