PTH and acute lymphoblastic leukemia: Moreover, in Turkey’s survey, levels of ALP, phosphorus, calcium, magnesium, 25-hydroxy vitamin-D and IGF-1 were assessed at the end of treatment in children (n=70) whose IGF 1 and 25-hydroxyvitamin D were reported lower than control group (p=0.033)15 Compared with our study included 25 children with ALL, the amounts of Ca, P, PTH and ALP were in normal range.