Mean grad
(mm Hg)
EOA (cm2) Resistance (dyne.s.cm−5)
21 mm (n = 5)13.3 (1.9)1.1 (0.1)457 (145)
23 mm (n = 31)15.3 (1.2)1.4 (0.1)328 (40)
25 mm (n = 31)13.2 (1.2)1.5 (0.1)242 (45)
27 mm (n = 13)10.6 (1.3)1.8 (0.1)125 (25)
29 mm (n = 4) 9.6 (2.5)1.8 (0.3)100 (46)