Drupal-Bibcite31<style face="normal" font="default" size="100%">Impact and cost-effectiveness of a universal strategy to promote physical activity in primary care: population-based cohort study and Markov model</style><style face="normal" font="default" size="100%">Impact and cost-effectiveness of a universal strategy to promote physical activity in primary care: population-based cohort study and Markov model</style>