highly significantp<0.001
A highly significant correlation was found between total calcium measured in all lithium-heparin and all citrate plasma aliquots (r = 0.991; p<0.001) ( Fig 1 ).
A highly significant correlation was found between total calcium measured in all lithium-heparin and all citrate plasma aliquots (r = 0.991; p<0.001) ( Fig 1 ).