In a solid golf ball comprising an elastic solid core and a resin cover, the cover has a JIS-C hardness of 50-85, and provided that the ball receives a spin rate S1 in the dry state and a spin rate S2 in the wet state when hit with a short iron having a loft of an 8-iron or greater, the percent spin retention: 100 is at least 47%. The unified patient referral worklist is generated by aggregating referral orders for patients from different medical organizations and determining which of the referral orders are associated with the provider. Since a second reference potential of the second driving signal is set to be lower than a first reference potential of a first driving signal generated in a recording period as much as possible, a general potential of the second driving signal is reduced, and reduce power consumption in the recording suspension period is reduced.