A 96-year-old Pennsylvania doctor is hanging up his stethoscope after more than 60 years of practice.

Dr. Raymond Grandon tells Pennlive.com (http://bit.ly/22drRgb ) that at the end of this year he will close the Harrisburg practice where he has worked since 1950.

The internal medicine doctor says that technology has changed and his own health is not as reliable as it once was.

He leaves behind patients he's had for decades. Seventy-nine-year-old John Ryan says he never considered getting a younger doctor in the 30 years he's been a patient.

Grandon graduated from medical school at what is now Philadelphia's Thomas Jefferson University in 1945. He specializes in heart disease and organized the first televised heart surgery during the mid-1950s. He has also held state and national level leadership positions.

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Information from: Pennlive.com, http://www.pennlive.com