‰HDF  ÿÿÿÿÿÿÿÿH–ÿÿÿÿÿÿÿÿ`ˆ¨ ˜TREEÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿxHEAPX Èdatadata_descr8ˆ¨ (namebackache (mldata0 commentñData file: This data from "Problem-Solving" on "backache in pregnancy" is in somewhat different format from that listed in the book. Each integer is preceded by a space. This makes it easier to read. Each line is split in two separated by an ampersand. Each line also has a full stop (or period) at the end of each line which should be removed. If you have any queries, please contact me. 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