intestinal 47ca absorption was determined from blood and stool radioactivity after oral administration of 150 ml saline containing the isotope ( as 47cacl2 ) and 500 mg of elementary calcium in the form of one of three commercial calcium preparations from `` '' naf '' '' or `` '' collett '' '' ( containing calcium carbonate ) or from `` '' sandoz '' '' ( containing mainly calcium lactogluconate ) .
C0360641
mg
C0006675
calcium