“Changes In Glutamic Oxaloacetic Transaminase Serum (SGOT) and Glutamic Pyruvic Transaminase Serum (SGPT) Value In Laparoscopic Cholecystectomy Patient at USU Hospital”. 2019. Sumatera Medical Journal 3 (2). https://doi.org/10.32734/sumej.v3i2.3273.