Passwords, limited access, and locked storage of disks and tapes are methods used to protect patient confidentiality when an electronic patient database is used

In what percentage of the general population does the circumflex artery, rather than the right coronary artery, run along the underside of the heart?

A) 10 percent B) 20 percent C) 30 percent D) 40 percent

In the complete hemoglobin structure, iron is:

a. Attached to the alpha-globin chains b. Attached to the non-alpha-globin chain c. In the mitochondria d. In the protoporphyrin ring