@misc{indiciae75034188305c, title = {The daytime breath hydrogen profile: technical aspects and normal pattern.}, author = {C M Kneepkens and R J Vonk and C M Bijleveld and J Fernandes}, year = {1985}, doi = {10.1016/0009-8981(85)90201-3}, url = {https://pubmed.ncbi.nlm.nih.gov/3995771/}, note = {Source identifier: 3995771} }