Cintya, Henni, Jansen Silalahi, Effendy De Lux Putra, and Rikson Siburian. 2019. “Analysis of Nitrosamines in Processed Meat Products in Medan City by Liquid Chromatography-Mass Spectrometry”. Open Access Macedonian Journal of Medical Sciences 7 (8):1382-87. https://doi.org/10.3889/oamjms.2019.261.