CD34 and spinal cord injury: Table 2 gives the details of some of the literature on such parameters based on our search. It has been found that works of literature reporting such data are very limited, which can serve as a valuable reference on the quantity of BMMNC or CD34+ HSC across different age groups of individuals, especially in spinal cord injury patients. Chernykh et al. have reported a similar study in spinal cord injury patients but the sample size is limited [21].