2590793 DIFM digital imaging fluorescence microscopy 7 2590792 DIFM difference from the overall mean 1 2590791 DIFM Dillenia indica fruit mucilage 1 2590794 DIFM direct immunofluorescence method 1 2590795 DIFM direct immunofluorescence microscopy 1 2590796 DIFM domestic infant formula milk 1 2590797 DIFM dual-path information fusion module 1