Nurse practitioner Dwayne Dobschuetz, left, visits patient Marvin Shimp, at Shimp's home in Chicago on Jan. 10, 2018. Shimp has lost much of his vision to macular degeneration and Dobschuetz's house calls help him stay out of the hospital with regular visits to check vitals and answer questions. Dobschuetz sees several patients in their homes each day, traveling by bicycle. He works at Northwestern Medicine in Chicago, which is taking a new approach to helping older patients stay healthier. (AP Photo/Teresa Crawford)
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