| PPB | platelet-poor blood; pneumococcal pneumonia and bacteremia; positive pressure breathing |
|---|---|
| PPV | pneumococcal polysaccharide vaccine; porcine parvovirus; positive predictive value; positive pressur... |
| AP | accessory pathway; accounts payable; acid phosphatase; acinar parenchyma; action potential; active p... |
| PPS | Personal Preference Scale; physician, patient and society [course]; polyvalent pneumococcal polysacc... |
| ACIP | acute canine idiopathic polyneuropathy; Advisory Committee on Immunization Practices [CDC] |