Effect of B vitamins and lowering homocysteine on cognitive impairment in patients with previous stroke or transient ischemic attack: a prespecified secondary analysis of a randomized, placebo-controlled trial and meta-analysis

GJ Hankey, AH Ford, Q Yi, JW Eikelboom, KR Lees , C Chen, D Xavier, JC Navarro, UK Ranawaka, W Uddin, S Ricci, J Gommans, R Schmidt, OP Almeida, FM van Bockxmeer

44: 2232–2239