The effect of exchanging drawings with peers on the happiness of children with cancer, aged 7–11 years: A clinical trial.Published in:PLoS ONE, 2021, v. 16, n. 10, p. 1, doi. 10.1371/journal.pone.0257867By:Palvan, Somayeh;Zareii, Khadijah;Sadat Hoseini, Akram Sadat;Haghani, HamidPublication type:Article