KNOWLEDGE AND AWARENESS OF VITAMIN B12 DEFICIENCY AMONG DIABETIC PATIENTS ON METFORMIN IN SAUDI ARABIA: A CROSS-SECTIONAL STUDY. CMN [Internet]. 2025 Jan. 15 [cited 2025 Apr. 26];:568-83. Available from: https://cahiersmagellanes.com/index.php/CMN/article/view/1240