Table 3.

Microbubble sizes obtained from the samples collected at 37°C at a flow rate combination of 10 μl s⁻¹ (air) : 5 μl s⁻¹ (lipid suspension). (For the calculation of mean diameters and standard deviations, 100 bubbles were taken from the respective micrographs.)

	bubble diameter (μm)
time interval	mean	s.d.
10 min	4.7	1.6
20 min	4.1	1.4
30 min	3.3	1.3
40 min	2.8	1.0
50 min	2.0	1.0
40 hours	1.9	1.0