| SS | disulfide; sacrosciatic; saline soak; saline solution; saliva sample; saliva substitute; Salmonella-... |
|---|---|
| UGIS | upper gastrointestinal series |
| ISIS | image selected in vivo spectroscopy; imaging science and information system; information system-imag... |
| SI | System of International Units (Systeme International D'unites) |
| BIPM | International Bureau of Weights and Measures [Fr. Bureau International des Poids et Mesures] |
| IAEA | International Atomic Energy Agency |
|---|---|
| IBMTR | International Bone Marrow Transplant Registry |
| ICDDR, B | International Centre for Diarrhoeal Disease Research, Bangladesh |
| ICNP | International Classification for Nursing Practice |
| ICD | International Classification of Dis eases |