| Acronym | Meaning |
| RAR | Retinoic Acid Receptor |
| PPHM | Parts Per Hundred Million |
| GE-PIXE | Grazing-exit Particle-induced X-ray Emission |
| MIC | Minimal Inhibitory Concentration |
| RFA | RCRA Facility Assessment |
| PPG | Polypropylene Glycol |
| CCR | Close-coupling R-matrix |
| CGI | Clinical Global Impression |
| NPOC | Nonpurgeable Organic Carbon |
| SXES | Soft X-ray Emission Spectroscopy |