can't tell you without knowing what country you're in
can give you info for the UK:
They are printed on headed stationary following a template format, with the surgery name, address, number, and phone number on them
They are also signed by the doctor and in some cases stamped
It isn't hard to make a convincing looking fake, but if they phone the surgery to confirm, you are royally fucked because it's a criminal offense to make counterfeits
can't tell you without knowing what country you're in
can give you info for the UK:
They are printed on headed stationary following a template format, with the surgery name, address, number, and phone number on them
They are also signed by the doctor and in some cases stamped
It isn't hard to make a convincing looking fake, but if they phone the surgery to confirm, you are royally fucked because it's a criminal offense to make counterfeits
if they were in the UK they would probabaly go to their GP
an excellent point