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. 2018 May 11;9:136. doi: 10.1186/s13287-018-0879-0

Fig. 1.

Fig. 1

Experimental schedule. a The study groups. hUCB-MSCs, human umbilical cord blood-derived mesenchymal stem cells; SI, single injection; 3RI, repeated injection with 3-day intervals; 7RI, repeated injection with 7-day intervals. b Time line. C, compression; DC, decompression; W, weeks after the first transplantation; T, transplantation; S, sampling; SEP, somatosensory evoked potential