Agin, Kh, and SH Ardehali. 2014. “Pre-Operative Assessment of Unexpected Micronutrients Status Among Elderly Patients With Elective General Surgery and No Apparent Clinical Indication; Zinc, Magnesium, Calcium, Inorganic Phosphorous”. International Journal of Medical Toxicology and Forensic Medicine 4 (2(Spring):49-54. https://doi.org/10.22037/ijmtfm.v4i2(Spring).5628.