| MSW | Master of Social Welfare; Master of Social Work; medical social worker; multiple stab wounds |
|---|---|
| SI | International System of Units [Fr. le Systeme International d'Unites]; sacroiliac; saline infusion; ... |
| SSI | segmental sequential irradiation; shoulder subluxation inhibition; small-scale integration; Social S... |
| SRS | schizophrenic residual state; sex reassignment surgery; Silver-Russell syndrome; simple repeat seque... |
| SS | disulfide; sacrosciatic; saline soak; saline solution; saliva sample; saliva substitute; Salmonella-... |