Newly discovered KI, WU, and Merkel cell polyomaviruses: No evidence of mother-to-fetus transmission oleh Taskinen Helena, Karikoski Riitta, Surcel Heljä-Marja, Kantola Kalle, Chen Tingting, Väisänen Elina, Riipinen Anita, Sadeghi Mohammadreza, Söderlund-Venermo Maria, Hedman Klaus