How Do I Do a Skin Punch Biopsy for Research and Diagnostic Purposes in Parkinson's Disease and Atypical Parkinsonism?

Ethical Compliance Statement: The authors confirm that the approval of an institutional review board was obtained. Informed written consent was separately obtained for all videotapes taken as part of the routine clinical evaluation as per standard policy in the Toronto Western Hospital Movement Disorders Clinic. We confirm that we have read the journal's position on issues involved in ethical publication and affirm that this work is consistent with those guidelines. Funding Sources and Conflicts of Interest: The authors report that no specific funding was received for this work. The authors declare that there are no conflicts of interest relevant to this work. Financial Disclosures for the previous 12 months: A.E.L. has served as an advisor for AbbVie, Amylyx, Aprinoia, Biogen, BioAdvance, Biohaven, BioVie, BlueRock, BMS, Denali, EG427, Janssen, Lilly, Pharma 2B, Sun Pharma, and UCB; received honoraria from Sun Pharma, AbbVie, and Sunovion; received grants from Canadian Institutes of Health Research, Edmond J Safra Philanthropic Foundation, Krembil Brain Institute, the Michael J. Fox Foundation, Parkinson Foundation, Parkinson Canada, and The Rossy Foundation; is serving as an expert witness in litigation related to paraquat and Parkinson's disease, received publishing royalties from Elsevier, Saunders, Wiley-Blackwell, Johns Hopkins Press, and Cambridge University Press. D.A.O. reports support from the Michael J. Fox Foundation. Data sharing not applicable to this article as no datasets were generated or analysed during the current study. Data S1. Supporting information. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.