Changes in physical activity by context and residential greenness among recent retirees: Longitudinal GPS and accelerometer study., Pasanen, S, Halonen J I., Gonzales-Inca C, Pentti J, Vahtera J, Kestens Y, Thierry B, Brondeel Ruben, Leskinen T, and Stenholm S , Health Place, 2021 Dec 13, Volume 73, (2021)