Selenium, RBCs Selenium, Serum or Plasma S Antigen Typing – Patient Selenium, Urine S-100 Protein by Immunohistochemistry Semen Analysis, Post Vasectomy S-100B Protein, Serum S100B, CSF Saccharomyces cerevisiae Antibodies, IgG & IgA Salicylate Assay Sal-like 4 (SALL4) by Immunohistochemistry Salmonella typhi and paratyphi Antibodies Schistosoma Antibody, IgG Scleroderma (Scl-70) (ENA) Antibody, IgG Sd(a) Antigen Typing, Patient SDHB with Interpretation by Immunohistochemistry Secretin Sedimentation Rate, Westergren (ESR) SHOX Mutation Detection Smith-Lemli-Opitz Syndrome (DHCR7) Sequencing