2.7.7.60 7 - assay at 2.7.7.60 7.4 - assay at 2.7.7.60 7.9 - - 2.7.7.60 7.9 - assay at 2.7.7.60 8 - - 2.7.7.60 8 - assay at 2.7.7.60 8.2 - assay at 2.7.7.60 8.3 - -