Development and Initial Validation of the Macrophage Activation Syndrome/Primary Hemophagocytic Lymphohistiocytosis Score, a Diagnostic Tool that Differentiates Primary Hemophagocytic Lymphohistiocytosis from Macrophage Activation Syndrome - Minoia, Francesca; Bovis, Francesca; Davi, Sergio; Insalaco, Antonella; Lehmbert, Kai; Shenoi, Susan; Weitzman, Sheila; Espada, Graciela; Gao, Yi-Jin; Silva, Clovis Artur Almeida da (Journal of pediatrics, 2017)