Not really, since my kids' pediatrician does a good job of keeping those records and letting me have access to them.
But, just as a quick "do you know what you are getting into?" question. If this is going to be used in the USA, have you started going through the pile of HIPAA compliance regulations for storing and access of this information? It can get even hairier than credit card info with lawsuits and penalties if some cracker breaches your system and that info gets out into the public.
