In this Jan. 19, 2017, handout photo from the University of Maryland Shock Trauma Center, nurse Amanda Fritsch checks the catheter delivering a drug that kept Stuart Anders’ injured leg numb for three days. Called a nerve block, the non-addictive numbing treatment substantially cut the amount of opioid painkillers that Anders otherwise would have been prescribed for his shattered femur. (University of Maryland Shock Trauma Center via AP)
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