ed for PAEDLINEIRelated articles 20 Expanded adipose-derived stem cells for the treatment of complex perianal fistula: a phase II clinical trial. Garcia-Olmo D, Herreros D, Pascual I, Pascual JA, Del- EFTA_R1_0 1502046 EFTA02431620 Valle E. Zorrilla J. De-La-Quintana P. Garcia-Arranz M. Pascual M. Dis