ANALYSIS OF HIGH DOSE AND LONG-TERM PREDNISONE THERAPY ON OSTEOCALCIN LEVELS IN CHILDREN WITH NEPHROTIC SYNDROME (STUDY AT PEDIATRIC DEPARTMENT NEPHROLOGY DIVISION OF DR. SOETOMO TEACHING HOSPITAL SURABAYA) Journal title: Asian Journal of Pharamceutical and Clinical Research Authors: Febrina Pritayuni Permatasari, Ninik Asmaningsih, Mariyatul Qibtiyah, Yulistiani Yulistiani Subject(s):