18-nor-vitamin D compounds
18-substituted-19-nor-vitamin D compounds
19,26,27-trinor-1α,25-dihydroxyvitamin D 3 compounds
19-nor-vitamin D compounds
19-nor-vitamin D compounds
19-nor-vitamin D compounds
19-nor-vitamin D compounds for use in treating hyperparathyroidi
19-Nor-vitamin D.sub.3 compounds with substitutent at 2-position
1a-hydroxy-2-(3'-hydroxypropylidene)-19-nor-vitamin D...