RT Journal Article SR Electronic T1 Juvenile Osteoporosis JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 66 OP 71 DO 10.1136/adc.46.245.66 VO 46 IS 245 A1 Lapatsanis, P. A1 Kavadias, A. A1 Vretos, K. YR 1971 UL http://adc.bmj.com/content/46/245/66.abstract AB Two cases of idiopathic juvenile osteoporosis are described; one with the mild form of the disease, and the other with the severe form. The common findings were pain in the feet or in the lumbar spine, with a negative calcium balance. Phosphorus balance was negative only in the child with the severe form of the disease.