{"id":"W2794127037","doi":"10.1002/uog.19004","title":"Prolonged duration of persistent cell‐free fetal DNA from vanishing twin","year":2018,"lang":"en","type":"letter","venue":"Ultrasound in Obstetrics and Gynecology","topic":"Prenatal Screening and Diagnostics","field":"Medicine","cited_by":35,"is_retracted":false,"has_abstract":true,"ca_institutions":"Hospital for Sick Children; University of Toronto; SickKids Foundation; Mount Sinai Hospital","funders":"","keywords":"Medicine; Aneuploidy; Fetus; Cell-free fetal DNA; Obstetrics; Gynecology; Gestational age; Pregnancy; Prenatal diagnosis; Biology; Genetics; Chromosome","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"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":[0.000357265,0.0003005298,0.0004460676,0.001317899,0.0005256535,0.0004645674,0.0004718153,0.0006656233,0.001228455],"category_scores_gemma":[0.005074162,0.0002463512,0.0003997312,0.0005594928,0.0004908277,0.0003857307,0.0006710895,0.001034151,0.0003112561],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000402885,"about_ca_system_score_gemma":0.0002633784,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002156521,"about_ca_topic_score_gemma":0.001701568,"domain_scores_codex":[0.9996516,0.00003397492,0.00005869165,0.00008550537,0.00009984651,0.00007030374],"domain_scores_gemma":[0.9974295,0.0008485874,0.0008038859,0.0002144955,0.0002414229,0.0004620545],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"case_report","study_design_scores_codex":[0.001084858,0.00007016886,0.4995174,0.0001852738,0.00006541237,0.4075348,0.001754429,0.0003135534,0.04993835,0.0005914919,0.0004377082,0.03850659],"study_design_scores_gemma":[0.00001318385,0.0008334523,0.3577715,0.0000452468,0.0001046703,0.6175535,0.0005460636,0.0007663108,0.01965817,0.000416945,0.002246841,0.00004418618],"study_design_candidate":"case_report","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9941111,0.002177227,0.001736564,0.0002250491,0.00006483094,0.00002575859,0.0001860452,0.00005211876,0.001421245],"genre_scores_gemma":[0.9985587,0.0003464669,0.0004056669,0.00006618215,0.00002069982,0.000007211072,0.0001735651,0.000009739131,0.0004117791],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.002156521,"threshold_uncertainty_score":0.004287899,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01557329402356541,"score_gpt":0.2291993374239993,"score_spread":0.2136260434004339,"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."}}