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METHOD Design This cross-sectional study consisted of an online questionnaire, distributed by an individual-participant-generated (unique) link using Select Survey
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We recommend once weekly for four weeks, followed by once a month
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Future trials should also measure important outcomes such as the clinical signs and symptoms of vitamin B 12 deficiency, health related-quality of life, socioeconomic effects, and report adverse events adequately, preferably in a primary care setting. Clinical practice guidelines British Columbia Medical Services Commission (MSC)
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