BRAF and Langerhans cell histiocytosis: 5 Berres Berres ML ML Lim Lim KP KP Peters Peters T T Price Price J J Takizawa Takizawa H H Salmon Salmon H H BRAF-V600E expression in precursor versus differentiated dendritic cells defines clinically distinct LCH risk groups BRAF-V600E expression in precursor versus differentiated dendritic cells defines clinically distinct LCH risk groups J Exp Med J Exp Med 2015 2015 212 212 281 281 281 281 10.1084/jem.2013097701202015c 10.1084/jem.2013097701202015c 25646268 25646268