Helicobacter pylori Breath Test, Adult Haptoglobin Helicobacter pylori Breath Test, Pediatric HBME-1 (Mesothelial Cell) by Immunohistochemistry Helicobacter pylori by Immunohistochemistry HDL Cholesterol Helicobacter pylori Culture Hearing Loss, Nonsyndromic Panel (GJB2) Sequencing, (GJB6) 2 Deletions and Mitochondrial DNA 2 Mutations Hematocrit Hearing Loss, Nonsyndromic, Connexin 30 (GJB6) 2 Deletions Hemochromatosis (HFE) 3 Mutations 17-Hydroxyprogesterone, Urine Hearing Loss, Nonsyndromic, Mitochondrial DNA 2 Mutations Hemoglobin 18-Hydroxycorticosterone by Mass Spectrometry Heat Shock Protein 70, IgG by Immunoblot Hemoglobin (Hb) A[2] and F by Column 21-Hydroxylase Antibody Heavy Metals Panel 3, Blood Hemoglobin A1c