Liquichek Specialty Immunoassay Control is an assayed, liquid, human serum-based control that is designed to complement Lyphochek and Liquichek Immunoassay Plus controls. It includes more complex analytes, such as Intact PTH, Anti-Tg, Anti-TPO, 25-OH Vitamin D, IGF-I, C-Peptide, Osteocalcin and EPO. It offers excellent open-vial stability