Regional variations in transepidermal water loss. Data were extracted from four studies: (A) Galeotti and Macri. (B) Ikeuchi and Kuno. (C) Burch and Sodeman. (D) Park and Tamura. Data are reported in identical units and arranged in descending order. To highlight differences among sites within each study, two ordinate scales have been used. Nine sites from Park and Tamura have been excluded for simplicity, leaving only the sites in common with the other reports.