| PPFA | Planned Parenthood Federation of America |
|---|---|
| PVA | Paralyzed Veterans of America; peripheral venous alimentation; polyvinyl acetate; polyvinyl alcohol;... |
| SCAA | Skin Care Association of America; sporadic cerebral amyloid angiopathy |
| USASI | United States of America Standards Institute |
| ACS | acrocallosal syndrome; acrocephalosyndactyly; acute chest syndrome; acute confusional state; Alcon C... |
| SIOP | Society of Pediatric Oncology |
|---|---|
| STS | Society of Thoracic Surgeons |