RT Journal Article SR Electronic T1 Alteration of CO2 Production during Nonfasting Isotopic CO2 Breath Tests: Concise Communication JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 955 OP 958 VO 22 IS 11 A1 Charles E. King A1 Phillip P. Toskes YR 1981 UL http://jnm.snmjournals.org/content/22/11/955.abstract AB