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For re-infection experiments, the filtrate was passed again through a 0.45 m syringe filter

E.et al (2019b)

Cultural and language barriers may also contribute to the under-reporting of negative or inconclusive results, 23 thereby increasing the likelihood of publication bias

A larger clinical trial randomly assigned more than 500 patients with type 2 diabetes and symptomatic peripheral neuropathy to one of the following treatments: (i) 600 mg/day of intravenous lipoic acid for three weeks followed by 1,800 mg/day of oral lipoic acid for six months, (ii) 600 mg/day of intravenous lipoic acid for three weeks followed by oral placebo for six months, or (iii) intravenous placebo for three weeks followed by oral placebo for six months (76)