title: Carbon monoxide and methane production in rats, guinea pigs, and germ-free rats.
mesh_terms: D000818:Animals; D001835:Body Weight; D002248:Carbon Monoxide / Q000096:biosynthesis*; D005260:Female; D005856:Germ-Free Life; D006168:Guinea Pigs; D006454:Hemoglobins; D007201:Indicator Dilution Techniques; D008297:Male; D008697:Methane / Q000096:biosynthesis*; D008722:Methods; D051381:Rats; D012737:Sex Factors
chemical_list: D006454:Hemoglobins; D002248:Carbon Monoxide; D008697:Methane