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            ______    _  __    ______    _____   
    ___    /_   _//  | |/ //  /_   _//  /  ___|| 
   /   ||   -| ||-   | ' //    -| ||-  | // __   
  | [] ||   _| ||_   | . \\    _| ||_  | \\_\ || 
   \__ ||  /_____//  |_|\_\\  /_____//  \____//  
    -|_||  `-----`   `-` --`  `-----`    `---`   
     `-`

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Text this: Reference ranges of myocardial performance index from 12 to 40 weeks of gestation