Determining the Frequency of Macroamylasemia in Patients with Hyperamylasemia using PEG Precipitation Method. - VAHEDI, AMIR; MEHRAMOUZ, BAHAREH; MAROUFI, PARHAM; POURLAK, TANNAZ; NPOUR, RAZAK REZVA; SHOKOUHI, BEHROOZ; POURLAK, TALA (Journal of Clinical & Diagnostic Research, 2018)