Fig. 2From: Sequence symmetry analysis graphic adjustment for prescribing trendsUnadjusted SSA visualisation for amlodipine and frusemide. The crude RR, 1.58, is the ratio of counts for first dispensings of frusemide occurring after amlodipine (RHS) to counts for first dispensings of frusemide occurring before amlodipine (LHS). The Tsiropolous adjusted RR is 1.62Back to article page