A set of normal values of three-dimensional echocardiographic right ventricular volume and function was first established in a large Chinese population, which was significantly smaller than those ...

Background: There is an uncertainty and paucity of data regarding normal levels of disaccharidase activities (DA) in infants. Aim: To establish normal values for DA in infants. To determine the ...

Men with a PSA level above the median for their age group are at higher risk for prostate cancer. The concept of what is "normal" enters into nearly every aspect of clinical decision making. For ...