{"id":"W2051541109","doi":"10.1016/j.jchromb.2008.12.020","title":"Validation and performance comparison of two carbon isotope ratio methods to control the misuse of androgens in humans","year":2008,"lang":"en","type":"article","venue":"Journal of Chromatography B","topic":"Hormonal and reproductive studies","field":"Medicine","cited_by":37,"is_retracted":false,"has_abstract":false,"ca_institutions":"","funders":"World Anti-Doping Agency","keywords":"Chemistry; Isotope-ratio mass spectrometry; Chromatography; Mass spectrometry; Urine; Testosterone (patch); Extraction (chemistry); Fractionation; Solid phase extraction; Isotopes of carbon; Forensic toxicology; Environmental chemistry; Internal medicine; Biochemistry; Total organic carbon","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.009916535,0.001418014,0.0008609667,0.002462536,0.0008188584,0.001708715,0.00139071,0.003493689,0.0006671603],"category_scores_gemma":[0.01375733,0.0007800976,0.0008721731,0.001102528,0.001704128,0.0005026687,0.000743101,0.001180149,0.0008159904],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007459284,"about_ca_system_score_gemma":0.00122251,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003867822,"about_ca_topic_score_gemma":0.004294763,"domain_scores_codex":[0.9912197,0.00324543,0.0003292621,0.002059172,0.002869517,0.0002769803],"domain_scores_gemma":[0.9923413,0.003097661,0.0008459986,0.0008442391,0.00251149,0.0003592119],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.01380805,0.001549682,0.25293,0.0008868057,0.002810251,0.0003320701,0.001612901,0.0066346,0.552206,0.001668909,0.001847974,0.1637127],"study_design_scores_gemma":[0.001094275,0.007316589,0.2694853,0.0002392099,0.002831742,0.006057613,0.0006502332,0.08110277,0.6185932,0.001462793,0.01074601,0.0004203241],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"methods","genre_scores_codex":[0.8548264,0.01061481,0.1270163,0.0005166562,0.0006635731,0.000510729,0.001105573,0.0008659091,0.003880016],"genre_scores_gemma":[0.9391097,0.001814641,0.05478089,0.000874023,0.0001232723,0.0002988317,0.0006982774,0.0002285803,0.002071739],"genre_candidate":"methods","genre_consensus":null,"teacher_disagreement_score":0.009916535,"threshold_uncertainty_score":0.05244422,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03775193028314053,"score_gpt":0.3611760024222299,"score_spread":0.3234240721390893,"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."}}