Thiol redox state, plasma albumin, and bcm index of healthy subjects and cancer patients. Each point represents an individual person. The bcm index was defined as the bcm/height2 in analogy to the body mass index. Note that the bcm index and the plasma albumin level have not been determined for all subjects of study A and study B (see Subjects, Materials, and Methods). Horizontal and vertical lines indicate the window that contains most of the healthy young subjects less than 35 years old.