Fig. 4From: Dynamic proteomic profiling of human periodontal ligament stem cells during osteogenic differentiationPathway annotation of differentially expressed proteins by the KEGG database. a The classification of differentially expressed proteins by KEGG database annotation at level 1. b The classification of differentially expressed proteins by KEGG database annotation at level 2; colour legends were the same as in a. c KEGG pathway enrichment analysis of differentially expressed proteinsBack to article page