Bone mineral density in survivors of childhood acute lymphoblastic leukemia - Fani Athanassiadou; Athanassios Tragiannidis; Israel Rousso; Georgios Katsos; Vassiliki Sidi; Theodotis Papageorgiou; Christos Papastergiou; Ioannis Tsituridis; Dimitrios Koliouskas (The Turkish Journal of Pediatrics)