_________ contracts may require that the copayment be paid at the time of the visit and may not allow providers to bill patients at a later time.
a. Managed care
b. Fee-for-service
c. PPO
d. PMS
Question 2
Interneurons, also known as ________ neurons, are housed entirely within the central nervous system.
a. associative
b. interactive
c. reactive
d. active