Dataset:  bldprs_measure.csv

Source: J.M. Bland and D.G. Altman (1999). "Measuring Agreement in Method
Comparison Studies," Statistical Methods in Medical Research, Vol. 8,
pp. 135-160.

Description: Plasma volume measurements on 99 subjects, with 2 methods,
Methods (normal values):
Normal values due to Nadler (nadler)
Normal values due to Hurley (hurley)
Subject ID is labelled: subj_id