Which one, gastric parietal cell antibody positivity or hyperhomocysteinemia, is a better biomarker to predict oral mucosal disease patients with vitamin B12 deficiency?

Which one, gastric parietal cell antibody positivity or hyperhomocysteinemia, is a better biomarker to predict oral mucosal disease patients with vitamin B12 deficiency? J Formos Med Assoc. 2020 Aug 24;: Authors: Sun A, Chang JY, Chiang CP PMID: 32855035 [PubMed - as supplied by publisher]
Source: J Formos Med Assoc - Category: General Medicine Authors: Tags: J Formos Med Assoc Source Type: research