{"id":"W3038232310","doi":"10.1093/ntr/ntaa119","title":"Support for Minimum Legal Sales Age Laws Set to Age 21 Across Australia, Canada, England, and United States: Findings From the 2018 ITC Four Country Smoking and Vaping Survey","year":2020,"lang":"en","type":"article","venue":"Nicotine & Tobacco Research","topic":"Smoking Behavior and Cessation","field":"Medicine","cited_by":10,"is_retracted":false,"has_abstract":true,"ca_institutions":"Ontario Institute for Cancer Research; University of Waterloo","funders":"National Cancer Institute; National Health and Medical Research Council; Canadian Institutes of Health Research; Ontario Institute for Cancer Research","keywords":"Tobacco control; Purchasing; Demography; Legislation; Medicine; Political science; Public health; Law; Business; Sociology","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001011578,0.0001969069,0.0003817469,0.001232723,0.001553335,0.001040242,0.0009996945,0.0003572644,0.001283459],"category_scores_gemma":[0.003544627,0.0003317881,0.0004065406,0.002850717,0.000588565,0.0004924766,0.001328173,0.0008794026,0.0001710931],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.006979126,"about_ca_system_score_gemma":0.01407279,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9830604,"about_ca_topic_score_gemma":0.986715,"domain_scores_codex":[0.99873,0.0001226284,0.0001204505,0.0001554074,0.0005166674,0.0003547835],"domain_scores_gemma":[0.9961266,0.0002129803,0.000987721,0.0000888804,0.001561207,0.001022679],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00001713093,0.00002309626,0.9942523,0.00003852985,0.00003084385,0.00003696076,0.001739767,0.00002979808,0.00004192492,0.00005342056,0.001185627,0.002550655],"study_design_scores_gemma":[0.000001072931,0.000006414069,0.9975457,0.00003308117,0.00000893745,0.00001674307,0.001790964,0.00004617817,0.00001581362,0.000006207682,0.0005251584,0.000003735728],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9915313,0.0007443912,0.0000631201,0.0005741292,0.0000122807,0.00005533262,0.004369076,0.000006788465,0.002643584],"genre_scores_gemma":[0.9959207,0.0008192132,0.0001245358,0.0002372632,0.000005691767,0.00003764966,0.002048969,0.000004447629,0.000801587],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01693958,"threshold_uncertainty_score":0.0506373,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.2102845926070328,"score_gpt":0.4084347640913143,"score_spread":0.1981501714842815,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}