GDF-15 Matched ELISA Antibody Pair Set, Human; MIC-1 Matched ELISA Antibody Pair Set, Human; MIC1 Matched ELISA Antibody Pair Set, Human; NAG-1 Matched ELISA Antibody Pair Set, Human; PDF Matched ELISA Antibody Pair Set, Human; PLAB Matched ELISA Antibody Pair Set, Human; PTGFB Matched ELISA Antibody Pair Set, Human