Seroepidemiological Study of Visceral Leishmaniasis (Kala-azar) in Children under 12 Years Old in North of Iran: An Observational Study in 2019-2020 - Niaye Shad, Iraj Amir; Mahmoudi, Mohammad Reza; Mohebali, Mehdi; Atrkar Roshan, Zahra; Ashrafi, Keyhan; Akhoundi, Behnaz; Majidi Shad, Bijan (Iranian Journal of Parasitology, 2022)