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. 1999 Jan;37(1):68–73. doi: 10.1128/jcm.37.1.68-73.1999

TABLE 3.

N in R1 and R2 measured in phase 2 by improved or reevaluated limiting-dilution assays

Sample and laboratory Sample N/ml (109)
R1a
 2 A 5.8
 1b R1 4.9
 8 A 3.2
 1a R1 2.1
 2 B 2.0
 2 R1 1.7
 8 R1 0.96
 8 B 0.93
R2b
 8 R2 3.9
 2 D 3.5
 2 C 3.4
 2 R2 3.1
 1a R2 2.5
 8 C 2.1
 8 D 1.2
 1b R2 0.96
a

GMV, 2.2 × 109/ml; 95% CI, 1.3 × 109 to 3.7 × 109/ml. 

b

GMV, 2.3 × 109/ml; 95% CI, 1.6 × 109 to 3.5 × 109/ml.