2020 HI (12 HR) Track B – Digital Radiology B, Ethics & Law, Technique This HI track B 12 hr seminar consists of 5 hr Digital Radiology B, 3 hrs of Ethics & Law (CBD), plus 4 hr of Technique. admin 2020 CA (5 HR)- Digital Radiology A of lumbar spine by Dr. Tong 2020 AK (3hr) Ethics -B- CBD by Dr StClaire