TY - RPRT TI - Spacing spheroids, curl-up and coiled neuritic plexus of the sacral spinal cord of aged dog: Hypothesis based on continued NADPH diaphorase histological observations AU - Jia, Y. AU - Li, Y. AU - Hou, W. AU - Tan, H. PY - 2020 DO - 10.1101/2020.03.31.018234 UR - https://www.biorxiv.org/content/10.1101/2020.03.31.018234v1 ID - 10.1101/2020.03.31.018234 ER -