7Stander S, Luger T, Metze D. Treatment of prurigo nodularis with topical capsaicin[J]. J Am Acad Dermatol. 2001,Mar;44(3):471~478.
8O Johansson, Y Liang, and L Emtestam Increased nerve growth factor- and tyrosine kinase A-like immunoreactivities in prurigo nodularis skin an exploration of the cause of neurohyperplasia[J].Arch Dermatol Res, February 1, 2002,293(12): 614~619.