RT Journal Article SR Electronic T1 The doctor with an inherited defect of colour vision: effect on clinical skills. JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 32 OP 33 VO 43 IS 366 A1 Spalding, J A YR 1993 UL http://bjgp.org/content/43/366/32.abstract AB