A(n) is performed by injecting air instead of contrast media after some cerebral spinal fluid has been removed?
A) angiograph
B) pneumoencephalograph
C) angioplasty
D) mammography

Why is it important that fibrin is insoluble in water?

What are some physical consequences of drunkenness?

Charlie has been having nightmares of late. he always thinks that there is an evil dragon waiting to pounce on him. what age is charlie most likely to be? a. one year old b. three years old c. seven years old d. nine years old