Overview of Knowledge, Attitude and Behaviour Level among Medical Students of Universitas Sumatera Utara towards Lactobacillus Casei Strain Shirota in Probiotic Drink. Sumat. Med. J. [Internet]. 2022 May 1 [cited 2026 Feb. 4];5(2). Available from: https://idjpcr.usu.ac.id/smj/article/view/8013