GENEVA, Nov. 30 -- BEIJING TIANTAN HOSPITAL, CAPITAL MEDICAL UNIVERSITY (No. 119, South 4th Ring West Road, Fengtai DistrictBeijing 100070), 首都医科大学附属北京天坛医院 (中国北京市丰台区南四环西路119号), RAY PLUS MEDICAL TECHNOLOGY CO., LTD. (Room 1201B, Building 1, Fengzhuyuan 2 Residential Quarter, Jiaomen No.18, Fengtai DistrictBeijing 100068), 北京瑞加图医疗科技有限公司 (中国北京市丰台区角门18号枫竹苑二...