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October 24, 1942, Vol 120, No. 8 >
ARTICLE | October 24, 1942

HANDBOOK OF NUTRITION: IX: Title and subTitle BreakTHE TRACE ELEMENTS IN NUTRITION FREE

MAURICE E. SHILS, Sc.D.; E. V. McCOLLUM, PH.D., Sc.D.
JAMA. 1942;120(8):609-619. doi:10.1001/jama.1942.82830430003010
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References

The many mineral elements which exist in animal tissues occur in widely varying amounts. They range from calcium, which comprises approximately 2 per cent of the adult human body weight and which can be expressed in kilograms, down to those which we must measure in milligrams and even micrograms, and which have been termed "trace elements." The dividing line between trace and non-trace elements is purely arbitrary and a matter of choice. Some nutritionists1 include in the former category any element occurring in the tissues or nutritionally necessary in amounts equal to and less than iron, but others2 consider only those elements below iron.

Presaging the point of view that traces of minerals might exert profound and specialized physiologic effects were the discoveries that iodine occurs in the thyroid,3 copper in octopus blood4 and in the hemocyanin of crustacea,5 zinc in the hemosycotopin of oysters,6

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Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

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Monier-Williams, G. W.: Aluminum in Food , Reports on Public Health and Medical Subjects 78, London, Ministry of Health, 1935;.
285 +
Hove, E.; Elvehjem, C. A., and Hart, E. B.:  Aluminum in the Nutrition of the Rat , Am. J. Physiol. 123:640-643 ( (Sept.) ) 1938;.
286 +
Scoular, Florence I.:  A Quantitative Study by Means of Spectrographic Analysis of Aluminum in Nutrition , J. Nutrition 17:393-405 ( (April) ) 1939;.

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To understand the clinical management of acute heart failure syndromes.
Accreditation Information The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians.
The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity.
Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
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For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
To view and print your certificate and access a summary of your CME courses go to My CME.
NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s “Cited By” API will populate this tab (http://www.crossref.org/citedby.html).
Compression-Only CPR: Pushing the Science Forward
Cone
AAM 2010;304:1493-1495.
All you need to read in the other general journals
BMJ 2010;341:c5893-c1494.
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