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Maria Valencia Mora, Miguel A Ruiz Ibán, Jorge Díaz Heredia, Raul Barco Laakso, Ricardo Cuéllar, Mariano García Arranz 
World J Stem Cells 7(4):691-699. Published online May 26, 2015. doi: 10.4252/wjsc.v7.i4.691
María Eugenia Balañá, Hernán Eduardo Charreau, Gustavo José Leirós 
World J Stem Cells 7(4):711-727. Published online May 26, 2015. doi: 10.4252/wjsc.v7.i4.711
Laleh Ghasemi-Mobarakeh, Molamma P Prabhakaran, Lingling Tian, Elham Shamirzaei-Jeshvaghani, Leila Dehghani, Seeram Ramakrishna 
World J Stem Cells 7(4):728-744. Published online May 26, 2015. doi: 10.4252/wjsc.v7.i4.728
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