Heptacarboxylporphyrin III:MRat:XXX:Stool:Qn
heptacarboxylporphyrin iii:mrat:xxx:stool:qn
Heptacarboxylporphyrin III:Mass Rate:Not specified:Stool:Quantitative
heptacarboxylporphyrin iii:mass rate:not specified:stool:quantitative