Predictive clinical and hematological factors in the differential diagnosis between malignancy and arthritis in children: a case-control study - Agodi Antonella; Russo Giovanna; La Rosa Manuela; Garozzo Rosaria; Marino Silvia; Timpanaro Tiziana; Barchitta Martina; Trigilia Cristina; Barone Patrizia; Di Cataldo Andrea (BMC, 2011)