13C-urea versus 14C-urea breath test--which is the safer?
Boivin
C
C
D001944:Breath Tests; D002247:Carbon Isotopes; D002250:Carbon Radioisotopes; D006801:Humans; D014508:Urea
D002247:Carbon Isotopes; D002250:Carbon Radioisotopes; D014508:Urea