RT Journal Article SR Electronic T1 Teleretina screening for diabetic retinopathy JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1006 OP E1006 DO 10.1503/cmaj.202141 VO 193 IS 26 A1 Daniel Rosenberg A1 Jason Noble A1 Varun Chaudhary YR 2021 UL http://www.cmaj.ca/content/193/26/E1006.abstract