| LID | large intraluminal density; late immunoglobulin deficiency; lymphocytic infiltrative disease |
|---|---|
| MEDAC | multiple endocrine deficiency, Addison's disease, and candidiasis [syndrome] |
| MSD | material safety data; mean square deviation; mild sickle cell disease; most significant digit; multi... |
| SID | single intradermal [test]; Society for Investigative Dermatology; sucrase-isomaltase deficiency; sud... |
| SSDD | steroid sulfatase deficiency disease |