Lancet. 1979 Jun; 1(8131): 1377-8.

Normal plasma-1,25-(OH)2-vitamin-D concentrations in nutritional osteomalacia.

Eastwood JB, de Wardener HE, Gray RW, Lemann JL.

Three patients with advanced untreated nutritional osteomalacia had low plasma concentrations of 25-OHD and 24, 25-(OH)2D, and a raised concentration of immuno-assayable parathyroid hormone. The plasma concentration of 1, 25-(OH)2D was normal in all 3 patients.