EFFECTIVENESS OF HEALTH EDUCATION ON SELF-ADMINISTRATION OF SUBCUTANEOUS INSULIN AMONG DIABETIC PATIENTS AT THE DEPARTMENT OF DIABETES AND ENDOCRINOLOGY, BACH MAI HOSPITAL. YHCĐ. 2026;66(CĐ17-HNKH Hội y học Giới tính). doi:10.52163/yhc.v66iCD17.4150