DIN 58910-1:2016 止血學(xué).促凝血酶原激酶時間的測定.第1部分:測定含枸櫞酸鹽的靜脈血中血漿的參考測量方法
Haemostaseology - Determination of thromboplastin (prothrombin) time - Part 1: Reference measurement procedure for the determination in plasma from citrated venous blood; Text in German and English