- Er
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* * *efficiency ratio; epigastric region; ejection rate; electroresection; emergency room; endoplasmic reticulum; enhanced reactivation; enhancement ratio; entity-relationship [model]; environmental resistance; enzyme reactor; equine rhinopneumonia; equivalent roentgen [unit]; erythrocyte receptor; estradiol receptor; estrogen receptor; etretinate; evoked response; expiratory reserve; extended release; extended resistance; external resistance; external rotation
* * *
ER abbr emergency room* * *
* * *
emergency room; endoplasmic reticulum; estrogen receptor.
Medical dictionary. 2011.