Successful Management of Neonatal and Infantile Kaposiform Hemangioendothelioma with Low-Dose Sirolimus Therapy. - Uematsu Y; Konishi KI; Tanaka K; Takayasu H; Watanabe E; Tomari T; Isohata H; Nakanishi H; Ochiai D; Kumamoto Y (Journal of pediatrics. Clinical practice, 2025)