{"id":"W2034314109","doi":"10.1503/cmaj.110517","title":"Does a patient with a thunderclap headache need a lumbar puncture?","year":2012,"lang":"en","type":"article","venue":"Canadian Medical Association Journal","topic":"Neurosurgical Procedures and Complications","field":"Medicine","cited_by":11,"is_retracted":false,"has_abstract":true,"ca_institutions":"Sunnybrook Health Science Centre; St. Michael's Hospital","funders":"","keywords":"Medicine; Lumbar puncture; Emergency department; Neck pain; Medical history; Surgery; Subarachnoid hemorrhage; Anesthesia; Cerebrospinal fluid; Alternative medicine; Psychiatry; Internal medicine","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":true,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.0004575831,0.0001254855,0.0002222569,0.0001064267,0.0002697072,0.00005663504,0.0000973382,0.0002129332,0.002779297],"category_scores_gemma":[0.0006282947,0.00006525231,0.0000974998,0.0002458271,0.00003691418,0.0001091002,0.00001098205,0.0009174322,0.00009656169],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0006178591,"about_ca_system_score_gemma":0.00172432,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0004728147,"about_ca_topic_score_gemma":0.004548371,"domain_scores_codex":[0.9977677,0.0000812892,0.0003002993,0.0001278428,0.001142874,0.0005800368],"domain_scores_gemma":[0.9962985,0.00007133605,0.000143103,0.0001254532,0.0002777676,0.003083837],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"not_applicable","study_design_scores_codex":[0.0001107874,0.0006589644,0.5871359,0.0000673815,0.0005533168,0.00104694,0.002016503,0.000005218153,0.0002306065,0.00329302,0.3470863,0.05779511],"study_design_scores_gemma":[0.001124865,0.0001866724,0.1805276,0.00008497173,0.00007323649,0.003471967,0.000494047,0.000056593,0.00002805394,0.0002156939,0.8135765,0.0001598101],"study_design_candidate":"not_applicable","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7296416,0.0004418906,0.000313189,0.2511428,0.0008018836,0.0004218124,0.0000212774,0.00005875117,0.01715679],"genre_scores_gemma":[0.9643114,0.00004502691,0.0001548043,0.03313371,0.001283591,0.00001728153,0.000006567196,0.00001767903,0.001029896],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.4664902,"threshold_uncertainty_score":0.9981323,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007391605326680242,"score_gpt":0.2242212683735221,"score_spread":0.2168296630468419,"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."}}