%0 Journal Article %T Evaluation of Serum Calcium as a Predictor of Biochemical Recurrence following Salvage Radiation Therapy for Prostate Cancer %A Jennifer L. Peterson %A Steven J. Buskirk %A Michael G. Heckman %A Alexander S. Parker %J ISRN Oncology %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/239241 %U http://dx.doi.org/10.1155/2013/239241