Human Dental pulp stem cells (hDPSCs): isolation, enrichment and comparative differentiation of two sub-populations March 14, 2015 BMC Developmental Biology 2015, 15:14Â doi:10.1186/s12861-015-0065-x Alessandra Pisciotta, Gianluca Carnevale and Simona Meloni contributed equally to this work. Published: 14 March 2015