(b) Stem Cell Related Gene Sets: 191 GO categories related to stem cells, neurogenesis, osteogenesis, extracellular matrix, developmental signal transduction pathway, cell cycle, growth factor, TGFβ/BMP signaling, Wnt signaling, and notch signaling were developed by Superarray Bioscience http://www.superarray.com. The gene set information is listed in Additional file 3 (shown with consent of Superarray Bioscience, Frederick, MD).
