Additional file 1: of Age related differences in cannabis use and subjective effects in a large population-based survey of adult athletes Joanna Zeiger William Silvers Edward Fleegler Robert Zeiger 10.6084/m9.figshare.9163457.v1 https://springernature.figshare.com/articles/journal_contribution/Additional_file_1_of_Age_related_differences_in_cannabis_use_and_subjective_effects_in_a_large_population-based_survey_of_adult_athletes/9163457 Study questionnaire. (DOCX 21 kb) 2019-07-30 04:20:37 Marijuana Medical marijuana Adults Sports medicine