title: Another source of error in the metabolic balance method.
mesh_terms: D000201:Activation Analysis; D000222:Adaptation, Physiological; D000328:Adult; D000818:Animals; D001823:Body Composition; D002118:Calcium / Q000032:analysis; D004032:Diet; D004044:Dietary Proteins; D004285:Dogs; D005069:Evaluation Studies as Topic; D005260:Female; D006207:Half-Life; D006801:Humans; D007223:Infant; D008433:Mathematics; D008660:Metabolism; D008722:Methods; D009584:Nitrogen / Q000378:metabolism*; D009747:Nutritional Physiological Phenomena; D010758:Phosphorus / Q000032:analysis; D011194:Potassium Isotopes; D051381:Rats; D012964:Sodium / Q000032:analysis
chemical_list: D004044:Dietary Proteins; D011194:Potassium Isotopes; D010758:Phosphorus; D012964:Sodium; D009584:Nitrogen; D002118:Calcium