decarboxylase (GADA) are markers for diagnosis, screening, and measuring outcomes in
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) consortia studies.
A harmonization program was established to increase comparability of results within and
among these studies. Methods: Large volumes of six working calibrators were prepared from
pooled sera with GADA 4.8–493 World Health Organization (WHO) units/ml and IA-2A 2 …