Silverwood, R. J., Nitsch, D., Pierce, M., Kuh, D., & Mishra, G. D. (2011). Characterizing Longitudinal Patterns of Physical Activity in Mid-Adulthood Using Latent Class Analysis: Results From a Prospective Cohort Study. Oxford University Press.

Silverwood, Richard J., Dorothea Nitsch, Mary Pierce, Diana Kuh, ja Gita D. Mishra. Characterizing Longitudinal Patterns of Physical Activity in Mid-Adulthood Using Latent Class Analysis: Results From a Prospective Cohort Study. Oxford University Press, 2011.

Silverwood, Richard J., et al. Characterizing Longitudinal Patterns of Physical Activity in Mid-Adulthood Using Latent Class Analysis: Results From a Prospective Cohort Study. Oxford University Press, 2011.