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However, scientific research shows that very high-dose oral B12 (1,000-2,000 mcg) can be effective for some, as about 1% can be absorbed without intrinsic factor
HongESKimEKKangSMKhangARChoiSHParkKSet al
Probiotic supplementation decreases intestinal transit time: meta-analysis of randomized controlled trials
Multiple organ dysfunction associated with severe acute pancreatitis Crit Care Med
Data & Statistics Estimating the Prevalence of Autism Spectrum Conditions in Adults Extending the 2007 Adult Psychiatric Morbidity Survey [NS] Prevalence and Characteristics of Autism Spectrum Disorder Among Children Aged 8 Years Autism and Developmental Disabilities Monitoring Network, 11 Sites, United States, 2012
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