1. JH Cui, SR Park, K Park, et al., Preconditioning of rabbit mesenchymal stem cells in polyglycolic acid (PGA) scaffold using low-intensity ultrasound improved regeneration of cartilage in rabbit articular cartilage defect model, Tissue Eng Regen Med, 7, 24 (2010).
2. JG Park, JH Lee, JN Kim, et al., Chondrogenic differentiation of human adipose tissue-derived stem cells in functional PLGA scaffolds, Tissue Eng Regen Med, 8, 47 (2011).
3. JJ Yoo, HN Kim, EH Bae, et al., Culture of human chondrocytes in a macroporous PLGA scaffold for up to sixteen weeks, Tissue Eng Regen Med, 8, 300 (2011).
4. P Dastidar, T Heinonen, T Vahvelainen, et al., Computerised volumetric analysis of lesions in multiple sclerosis using new semi-automatic segmentation software, Med Biol Eng Comput, 37, 104 (1999).
5. S Shiffman, GD Rubin, S Napel, Medical image segmentation using analysis of isolable-contour maps, IEEE Trans Med Imaging, 19,1064 (2000).