CD221 Matched ELISA Antibody Pair Set, Human; IGF-I R Matched ELISA Antibody Pair Set, Human; IGF1 Receptor Matched ELISA Antibody Pair Set, Human; IGFIR Matched ELISA Antibody Pair Set, Human; IGFR Matched ELISA Antibody Pair Set, Human; JTK13 Matched ELISA Antibody Pair Set, Human