Amylase.periton fld/Amylase.serum:RelRto:Pt:Periton fld+Ser/Plas:Qn
amylase.periton fld/amylase.serum:relrto:pt:periton fld+ser/plas:qn
Amylase in peritoneal fluid/Amylase in serum (Periton fld+S/P) [Relative ratio]
amylase in peritoneal fluid/amylase in serum (periton fld+s/p) [relative ratio]