Exterior good quality Handle, often known as external high-quality assessment (EQA) or proficiency tests (PT), is an important procedure for making sure the precision and reliability of laboratory tests.[seventy nine] In this particular assessment, surrogate samples are supplied by an impartial exterior Group, and also the laboratory is unaware of http://puurpositief.nl/24-uurszorg-thuis-dag-en-nachtzorg-bij-u-thuis/