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Typical pore morphologies of porous scaffolds by various techniques: a solvent casting/particulate leaching (Dalton et al. 2009); b freeze-drying (Morsi et al. 2008); c TIPS (Dalton et al. 2009); d gas foaming (Morsi et al. 2008); e electrospinning (Dalton et al. 2009); f replication technique (Chen et al. 2008); g sol–gel technique (Sepulveda et al. 2002)
