What is considered the most common and safest type of laxative?

A milliliter equals:

A) 1/100 of a liter. B) 1/1000 of a liter. C) 1/10000 of a liter. D) 1/10 of a liter.

Effective patient billing begins with

A. good collection letters. B. sound financial policies. C. efficient credit reporting. D. good collection calls.