Long-term effects of the COVID-19 pandemic on cutaneous squamous cell carcinoma: Increase of thick tumors in two german dermatology clinics. - Balakirski G; Sabulyte S; Wesselmann U; Michalowitz AL; Kreuter A; Hofmann SC (Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG, 2023)