QUESTION $7$

In the late $20$th century, many methods were used to pay physicians for services rendered. The most popular methods include all the following except payment

as a base salary.

according to a schedule of fee$-$for$-$service $($FFS$).$

based on usual, customary, reasonable $($UCR$)$ charges.

based on resource based relative values$($RBRVs$).$

based on patient outcomes.