“DR”在医学中具有多种含义，常见的包括数字化X线摄影（Digital Radiography）、医生（Doctor）、糖尿病性视网膜病变（Diabetic Retinopathy）、深反射（Deep Reflex）、舒张期（Diastole）等。

A murmur is either systolic, diastolic or continuous throughout systole and diastole. Remember: Systole occurs between the S1 and S2 heart sounds, while diastole occurs between S2 and S1.

A murmur is either systolic, diastolic or continuous throughout systole and diastole. Remember that systole occurs between the S1 and S2 heart sounds, whereas diastole occurs between S2 and S1.

While upper normal limits exist for maximal left ventricular (LV) wall thickness (14 mm) and LV internal diameter in diastole (LVIDd, 65 mm), it is unknown if these limits are applicable to athletes ...