Development and validation of a self-administered questionnaire to estimate the distance and mode of children's travel to school in urban India.

Tetali, S; Edwards, P; Murthy, GV; Roberts, I; (2015) Development and validation of a self-administered questionnaire to estimate the distance and mode of children's travel to school in urban India. BMC medical research methodology, 15. p. 92. ISSN 1471-2288 DOI: https://doi.org/10.1186/s12874-015-0086-y

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