EXPERIENCE WITH THE CHROMIC OXIDE METHOD OF FECAL MARKING IN METABOLIC BALANCE INVESTIGATIONS ON HUMANS

^{Department of Chemical Pathology, Postgraduate Medical School of London, London, England}

^{Metabolic Unit Laboratory, Hammersmith Hospital, London, England}

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^{Department of Chemical Pathology, Postgraduate Medical School of London, London, England}

^{Metabolic Unit Laboratory, Hammersmith Hospital, London, England}

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