Figure 1From: Exposure to anti-malarial drugs and monitoring of adverse drug reactions using toll-free mobile phone calls in private retail sector in Sagamu, Nigeria: implications for pharmacovigilanceRelationship between responses to toll-free mobile phone calls and time of call during monitoring of adverse drug reactions to anti-malarial drugs purchased in the retail outlets (r = 0.81, F = 13.7, P = 0.008).Back to article page