Ben let us not forget the time factor with the healing practitioner:
2000 BC- You need a ritual it will take 5 days
1000 AD- You need to pray the rosary that will take 5 days.
1850 AD take this potion (calomel) and if you are still alive call me in five days.
1940 AD take this pill and I will see you in five hours when I do house calls.
1985 AD you belong to an HMO you have 5 min.
2000 AD It takes 1 hour to take the case and 5 to repertorize the case.