Arsenic.inorganic/Creatinine:SRto:24H:Urine:Qn
arsenic.inorganic/creatinine:srto:24h:urine:qn
Arsenic.inorganic/Creatinine:Substance Ratio:24 hours:Urine:Quantitative
arsenic.inorganic/creatinine:substance ratio:24 hours:urine:quantitative