Development and validation of a tool to assess the physical and social environment associated with physical activity among adults in Sri Lanka
De Silva Weliange, Shreenika H ; Fernando, Dulitha ; Gunatilake, Jagath
BMC public health, 2014-05, Vol.14 (1), p.423-423, Article 423 [Periódico revisado por pares]England: BioMed Central Ltd
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