<qa>  What is the name of the first method used to collect blood samples?This study will involve the patient having blood samples taken by two different methods at each of the time points described above. In the first method, a butterfly needle will be used to gain intravenous access at the antecubital fossa, and a heparinised vacutainer will be used to collect a 4ml blood sample. The needle will then be removed and the venepuncture site dressed with a plaster. In the second method, a single-use safety lancet will be used to puncture the skin on the finger, and a small pipette used to collect a small quantity of blood. The entire pipette will be transferred to a sample tube for later processing. The puncture site on the finger will then be dressed with a small plaster. The exact start and end times for each sample will be recorded using a radio-controlled standard clock. 