title: Measurement of spinal calcium by in vivo neutron activation analysis in osteoporosis.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D000704:Analysis of Variance; D002118:Calcium / Q000032:analysis* / Q000627:therapeutic use; D004997:Ethinyl Estradiol / Q000627:therapeutic use; D005260:Female; D005265:Femoral Neck Fractures / Q000150:complications; D006801:Humans; D006887:Hydroxycholecalciferols / Q000627:therapeutic use; D008875:Middle Aged; D009501:Neutron Activation Analysis; D010024:Osteoporosis / Q000188:drug therapy / Q000378:metabolism*; D013131:Spine / Q000032:analysis*
chemical_list: D006887:Hydroxycholecalciferols; D004997:Ethinyl Estradiol; D002118:Calcium; C008088:alfacalcidol