Cholesterol.plr fld/Cholesterol.serum:RelRto:Pt:Ser/Plas+Plr fld:Qn
cholesterol.plr fld/cholesterol.serum:relrto:pt:ser/plas+plr fld:qn
Cholesterol in pleural fluid/Cholesterol in serum (S/P+Pleur fld) [Relative ratio]
cholesterol in pleural fluid/cholesterol in serum (s/p+pleur fld) [relative ratio]