instruction: calculate the number of patients diagnosed in 2105 with mult mye w/o achv rmson.
response: SELECT COUNT(DISTINCT admissions.subject_id) FROM admissions WHERE admissions.hadm_id IN (SELECT diagnoses_icd.hadm_id FROM diagnoses_icd WHERE diagnoses_icd.icd9_code = (SELECT d_icd_diagnoses.icd9_code FROM d_icd_diagnoses WHERE d_icd_diagnoses.short_title = 'mult mye w/o achv rmson') AND STRFTIME('%y', diagnoses_icd.charttime) = '2105')