Helm, Thomas N, Paul J Wirth, Helen L Xu, Stefanos Haddad Haddad, and Aries Y Liu-Helm. 2015. “Intralymphatic Histiocytosis and Hypertrichosis Occurring Over the Site of a Titanium Hip Implant in a Patch Test Negative Patient”. North American Journal of Medicine and Science 8 (1). https://najms.com/index.php/najms/article/view/31.