Supplementary Material of The Cumulative Dose of Hydroxyurea Causing Cutaneous Squamous Cell Carcinoma in Patients with Myeloproliferative Diseases

1. Supplementary extracted data: Various information of patients in the collected case series. 2. Supplementary Material: The study process, specific situation of patients in our hospital and other statistical results. 3. Supplementary Table 1: Other details about HU-induced SCC.