فهرس المقالات Modified external standardizat حرية الوصول المقاله صفحة الملخص نص كامل 1 - Calcium evaluation of human fingernail using laser plasma spectroscopy by simultaneously applying addition and modified external standardizations Sahar Maghsoumi Hamidreza Shirvani-Mahdavi 10.1007/s40094-018-0317-9