Can anyone that has been in business for awhile share what types of marketing works best to get a practice up and running quickly?

I have just opened up a practice and have handed out packets with brochures, cards, services, and info letter to chiropractors.
Some of them seem to be very responsive and want to be on board, however non of them have sent me any clients yet, I know that it will come in time.
I would like to know if anyone has any wonderful ideas as to get a practice up and running in record time.
I am open to any type of marketing to get the ball rolling.
Thanks,
Maria Reddington, CHt