What is the diffusion of water across a cell membrane called?

Modifiers are _______ digit suffixes used with CPT codes to report a service or procedure that has been modified by some specific circumstance without altering or modifying the basic definition or CPT code

A) two- B) three- C) four- D) five-

Which of the following is not considered a potential cause of a developmental disability?

a. genetic factors b. complications at birth c. folic acid deficiency d. malnutrition