abbr.海洋科学学士（Bachelor of Marine Science）；医学学士（Bachelor of Medical Science）；商业管理系统（Business Management System）；人体尺寸测量系统（body measurement system）；电池管理系统（battery management system）
Mortality rates in patients with drug eluting stents (DES) are no higher than with bare metal stents (BMS), according to the largest ever long-term study of DES and BMS.