Relationship between F-cell numbers and glycophorin-A–positive microvesicles or total PS-positive events from patients with SS disease.

The solid line in each panel represents the linear-regression fit to the data, while the dotted lines represent the 99% confidence interval curves. (A) Glycophorin-A–positive microvesicles and F-cell numbers. (B) Total PS-positive events from patients with SS disease and F-cell numbers.