Arsenic.inorganic/Creatinine:SRto:24H:Urine:Qn
arsenic.inorganic/creatinine:srto:24h:urine:qn
Arsenic.inorganic/Creatinine [Molar ratio] in 24 hour Urine
arsenic.inorganic/creatinine [molar ratio] in 24 hour urine