Clinical and Laboratory Findings of Visceral Leishmaniasis in Children Hospitalized in Mashhad, Northeastern Iran: A Twenty-Year Retrospective Study - SHAMSIAN, Seyed Aliakbar; FATA, Abdolmajid; ALINEZHAD, Reza; MOHEBALI, Mehdi; SADABADI, Fatemeh; MOGHADDAS, Elham; FAKHAR, Mahdi (Iranian Journal of Parasitology, 2020)