Fig. 1From: Utility of oral fluid samples for hepatitis B antibody detection in real life conditionsDotPlot Optical Density obtained in oral fluid samples according to transport buffer. Transport Buffers: (1) PBS pH 7.2; (2) PBS/Tween 20 0.05%; (3) PBS/Tween 20 (0.05%)/Sodium azide (0.005%); (4) PBS/Tween 20 (0.2%)/BSA 5%; (5) PBS/BSA 0.5%. Notes: (a) Correlation coefficient Pearson: 0.961; (b) Mean and standard deviation not shown due to the low number of observations among those transfer buffersBack to article page