PCPs (primary care physicians) are gatekeepers because they treat the while patient and manage referrals to specialists, rather than a patient deciding which specialist's opinions are sought. this concept became popular with the adven advent of HMOs - and services would only be paid if the PCP sought approval for major diagnostic tests and referrals. PCPs were financially rewarded if their patient population had fewer expensive tests and/or referrals.
Explanation:
Gift your lungs oxygen not tar. Gift your body exercise not bad health. Gift your lips kisses not cigarette butts.
Can I please have the table?! I would love to help!!!
A. Is the right answer.
Here is a diagram of blood flow