title: [An improved variant of the Holden apparatus].
mesh_terms: D002245:Carbon Dioxide / Q000032:analysis; D006801:Humans; D010100:Oxygen / Q000032:analysis; D010101:Oxygen Consumption; D010827:Physiology / Q000295:instrumentation; D012119:Respiration
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen
vernacular_title: Variant usovershenstvovaniia apparata Kholdena.