Timmers L, Lim SK, Arslan F, Armstrong JS, Hoefer IE, Doevendans PA, Piek JJ, El Oakley RM, Choo A, Lee CN, Pasterkamp G, de Kleijn DP. Reduction of myocardial infarct size by human mesenchymal stem cell conditioned medium. Stem Cell Res. 2007 Nov;1(2):129-37. doi: 10.1016/j.scr.2008.02.002. Epub 2008 Mar 8. PubMed PMID: 19383393. Link

Choo A, Ngo AS, Ding V, Oh S, Kiang LS. Autogeneic feeders for the culture of undifferentiated human embryonic stem cells in feeder and feeder-free conditions. Methods Cell Biol. 2008;86:15-28. doi: 10.1016/S0091-679X(08)00002-2. PubMed PMID: 18442642. Link

Chee SG, Guo T, Zhang H, Lim SK, Sze SK. A comparative study of electrostatic repulsion-hydrophilic interaction chromatography (ERLIC) versus SCX-IMAC-based methods for phosphopeptide isolation/enrichment. J Proteome Res. 2008 Nov;7(11):4869-77. doi: 10.1021/pr800473j. Epub 2008 Oct 2. PubMed PMID: 18828627. Link