{"text_format":"3","workbook":"xls","n_sheets":3,"sheets":["Sheet1","Sheet2","Sheet3"],"read":"whole","date_system":"1900","formulas":"cached_only"}

{"sheet":"Sheet1","index":0,"n_rows":8,"n_cols":4,"rows_kept":8,"merged":[[0,0,0,3],[2,2,6,2],[2,3,6,3],[7,0,7,3]],"flags":["formulas_cached_only"]}
["Table 3. PI values at different gestational ages"]
["GA(W)","PI","F","P"]
[32,"1.2±0.4a",6.233,"<0.001"]
[33,"1.3±0.5ab"]
[34,"1.4±0.6bc"]
[35,"1.5±0.6c"]
[36,"1.4±0.6bc"]
["Tukey test for post-test; a, b, c represent the minimum group, subgroup, and maximum group"]

{"sheet":"Sheet2","index":1,"n_rows":0,"n_cols":0,"rows_kept":0,"flags":["formulas_cached_only"]}

{"sheet":"Sheet3","index":2,"n_rows":0,"n_cols":0,"rows_kept":0,"flags":["formulas_cached_only"]}