{"id":"W4417435691","doi":"10.1016/j.cjca.2025.12.021","title":"Preserved Hemoglobin, Impaired Performance: Rethinking Iron in Fontan Circulation","year":2025,"lang":"en","type":"letter","venue":"Canadian Journal of Cardiology","topic":"Congenital Heart Disease Studies","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"St. Boniface Hospital","funders":"","keywords":"Fontan procedure; Circulation (fluid dynamics); Anaerobic exercise; Iron deficiency; Portal circulation","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001224891,0.0004913276,0.0009053115,0.0009488509,0.002475531,0.001468913,0.001308001,0.01332283,0.003085157],"category_scores_gemma":[0.01118229,0.0003564826,0.0005538827,0.0006439921,0.001712043,0.001979457,0.0005987604,0.009721987,0.0006508888],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002870991,"about_ca_system_score_gemma":0.002716418,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01616098,"about_ca_topic_score_gemma":0.02942163,"domain_scores_codex":[0.9990942,0.0002429982,0.0001913626,0.0001147168,0.0001810235,0.0001756219],"domain_scores_gemma":[0.9962859,0.002037716,0.0001986698,0.0001017362,0.0003249416,0.001050933],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"case_report","study_design_gemma":"not_applicable","study_design_scores_codex":[0.0007239639,0.0004019205,0.0967859,0.0002805865,0.00008664172,0.5131669,0.001991378,0.000127722,0.001131603,0.006047084,0.3449295,0.03432685],"study_design_scores_gemma":[0.001003035,0.0009648821,0.1543255,0.002712758,0.0004251391,0.5556307,0.009174824,0.002119957,0.001268326,0.02311788,0.2489944,0.0002626562],"study_design_candidate":"not_applicable","study_design_consensus":null,"genre_codex":"commentary","genre_gemma":"commentary","genre_scores_codex":[0.0921002,0.01244927,0.0003365563,0.851274,0.01913468,0.0000647741,0.000175988,0.00005345156,0.02441101],"genre_scores_gemma":[0.5200703,0.008591407,0.001330736,0.3762672,0.08329256,0.00007127741,0.000128552,0.00006251201,0.01018543],"genre_candidate":"commentary","genre_consensus":"commentary","teacher_disagreement_score":0.01616098,"threshold_uncertainty_score":0.03213382,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02377466719501066,"score_gpt":0.2522572782030375,"score_spread":0.2284826110080269,"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."}}