Partial Thromboplastin Time (PTT) The Partial thromboplastin time (PTT) test also measures the pace of clotting but differs within the PT exam in that it aims to ascertain how blood clots within a blood vessel (intrinsic pathway). 文章標題：深入解析：六合彩是賭博嗎？全面瞭解其運作與風險 香港六合彩，這個承載著無數夢想的數字遊戲，總是讓人 The PTT examination seems to be for the intrinsi... https://rg88.org/sport/