Saliva sample collection is a relatively acceptable sampling method, which does not harm the human body and is painless and noninvasive to obtain DNA/RNA samples, because this collection method will not cause any inconvenience to the sampled. The benefits of using saliva samples: Compared with blood samples, saliva samples are easier, สะดวกยิ่งขึ้น, safer, ไม่เจ็บปวด, and non-invasive. The method of …