| HbS | hemoglobin S, sickle-cell hemoglobin |
|---|---|
| S-D | sickle-cell hemoglobin D; suicide-depression |
| SF | Sabin-Feldman [test]; safety factor; salt-free; scarlet fever; screen film; seminal fluid; serosal f... |
| HbA | hemoglobin A, adult hemoglobin |
| HbF | fetal hemoglobin, hemoglobin F |