Diagnostic development.
D001944:Breath Tests / Q000379:methods; D002247:Carbon Isotopes; D002648:Child; D005260:Female; D006801:Humans; D008107:Liver Diseases / Q000175:diagnosis*; D013058:Mass Spectrometry; D010182:Pancreatic Diseases / Q000175:diagnosis*; D011247:Pregnancy
D002247:Carbon Isotopes