MacCallum, Don. Peripheral Nervous System. Histology and Virtual Microscopy Learning Resources. University of Michigan Medical School. [24 June 2014]. (原始内容存档于2014年7月7日).
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MacCallum, Don. Peripheral Nervous System. Histology and Virtual Microscopy Learning Resources. University of Michigan Medical School. [24 June 2014]. (原始内容存档于2014年7月7日).