{"id":"W2101881391","doi":"10.1056/nejmoa032312","title":"A Randomized Trial of Letrozole in Postmenopausal Women after Five Years of Tamoxifen Therapy for Early-Stage Breast Cancer","year":2003,"lang":"en","type":"letter","venue":"New England Journal of Medicine","topic":"Estrogen and related hormone effects","field":"Biochemistry, Genetics and Molecular Biology","cited_by":1826,"is_retracted":false,"has_abstract":true,"ca_institutions":"Sunnybrook Health Science Centre; Ontario Institute for Cancer Research","funders":"National Cancer Institute","keywords":"Medicine; Letrozole; Tamoxifen; Breast cancer; Interim analysis; Aromatase inhibitor; Internal medicine; Discontinuation; Placebo; Oncology; Surgery; Randomized controlled trial; Gynecology; Cancer","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.006517365192161627,"score_gpt":0.2588377947875527,"score_spread":0.2523204295953911,"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."}}