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Prevalence of Vitamin B12 Deficiency Among Geriatric Outpatients
The Journal of Family Practice
. 1992 November;35(5):
November 1, 1992
|
The Journal of Family Practice
Yulin Yao, MD
;
Siu-Long Yao, MD
;
Siu-Sun Yao, MD
;
Grace Yao, PhD
;
Wendy LOU
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