I have problems with this sentence. Can you please help me sort it out?<br/><br/>Using TWG technique the chest tube tip was located on previously planned position in <i><u>79% cases</u></i> compared to the 30 % when using CS technique.<br/><br/>1. Is it Ok to say "79% cases"? Shouldn't OF be used here?<br/><br/>2. Is "compared to" Ok in this sentence? Is the sentence correct?<br/><br/>Thank you