What letter comes after s

Aphysician performs a four vessel autogenous ( one venous three atrial) coronary bypass on a patient who has

Bloodborn pathogens are infectious microorganisms carried by what?

Take a nutritional supplement during times of stress a. is recommended by al doctors as a stress management technique b. has been scientifically proven to aid in stress management c. only adds to the stress you’re feeling d. can you feel better because you believe it will you