Increased Serum Vitamin D and Decreased Serum Cholesterol Are Associated With Development of Squamous Cell Carcinoma in Actinic Keratosis Patients: A Retrospective Machine-Learning Analysis of the All of Us Database. Dermatol Pract Concept 2024, 14 (4), 2024228. https://doi.org/10.5826/dpc.1404a228.