The quantitative data relating to the derived fibril area fraction for the respective age groups are contained in a MS Excel file, FIBRIL_AREA_FRACTION-SCI_DATA.xls. <div><br></div><div>The file contains one worksheet. The column descriptions for the worksheet 'FIBRIL AREA FRACTION', i.e. COLUMN A to H, contains the fibril area fraction of fascicle specimens derived from the individual mouse of the respective age group.</div