Question: Where did John Ebersole perform x-rays in the autopsy of a president?

full_context: Document 1: John F. Kennedy assassination Dictabelt recording: The John F. Kennedy assassination Dictabelt recording was a recording from a motorcycle police officer's radio microphone stuck in the open position that became a key piece of evidence cited by the House Select Committee on Assassinations (HSCA) in their conclusion that there was a conspiracy behind the assassination of John F. Kennedy on November 22, 1963. Made on a common Dictaphone dictation machine that recorded sounds in grooves pressed into a thin vinyl-plastic belt, the recording gained prominence among Kennedy assassination conspiracy theorists from 1978, in which the HSCA used it to conclude that there was a "high probability" that Lee Harvey Oswald did not act alone and that the Kennedy assassination was the result of a conspiracy. Later scientific examination discredited this interpretation of the evidence.
Document 2: Warren Commission: The President's Commission on the Assassination of President Kennedy, known unofficially as the Warren Commission, was established by President Lyndon B. Johnson through Executive Order on November 29, 1963 to investigate the assassination of United States President John F. Kennedy that had taken place on November 22, 1963. The U.S. Congress passed Senate Joint Resolution 137 authorizing the Presidential appointed Commission to report on the assassination of President John F. Kennedy, mandating the attendance and testimony of witnesses and the production of evidence. Its 888-page final report was presented to President Johnson on September 24, 1964 and made public three days later. It concluded that President Kennedy was assassinated by Lee Harvey Oswald and that Oswald acted entirely alone. It also concluded that Jack Ruby also acted alone when he killed Oswald two days later. The Commission's findings have proven controversial and have been both challenged and supported by later studies.
Document 3: John H. Ebersole: Captain John Henry Ebersole, M.D., MC USN (26 January 1925 – 23 September 1993) a pioneer in submarine medicine and radiation oncology, selected by Admiral Rickover to serve as medical officer aboard the US Navy's first two nuclear powered submarines, the USS "Nautilus" and the USS "Seawolf." He was the radiologist for NASA that screened the Mercury Seven astronauts for Project Mercury. Ebersole was the radiologist responsible for the x-rays taken during the autopsy of John F. Kennedy on 22 November 1963 at Bethesda Naval Medical Center.
Document 4: Ruth Paine Home: The Ruth Paine Home at 2515 W. 5th Street in Irving, Texas, United States, is the location where Lee Harvey Oswald spent the night before assassinating President John F. Kennedy on November 22, 1963. It was from the house's garage that he removed the rifle he used for the assassination, which he had previously concealed there.
Document 5: John F. Kennedy Eternal Flame: The John F. Kennedy Eternal Flame is a presidential memorial at the gravesite of U.S. President John F. Kennedy, in Arlington National Cemetery. The permanent site replaced a temporary grave and eternal flame used during President Kennedy's funeral on November 25, 1963. The site was designed by architect John Carl Warnecke, a long-time friend of the President. The permanent John F. Kennedy Eternal Flame grave site was consecrated and opened to the public on March 15, 1967.
Document 6: John H. Rubel: John H. Rubel (April 27, 1920 – January 13, 2015) was a business executive in the early post-World War II years of the defense electronics industry, later serving as Assistant Secretary of Defense in the Kennedy administration. He is regarded as one of Robert McNamara's so-called whiz kids and was an early proponent of geosynchronous communications satellites.
Document 7: John Ebersole (educator): John Frederick Ebersole (April 4, 1944 – November 23, 2016) was an American educator, author, columnist, and president of Excelsior College. He served as president from 2006 to 2016, succeeding C. Wayne Williams, the founding president of the college.
Document 8: Timeline of the presidency of John F. Kennedy: The presidency of John F. Kennedy, also known as the Kennedy Administration, began January 20, 1961, when John F. Kennedy was inaugurated as President of the United States, and ended on November 22, 1963, when he was assassinated, a span of days. This timeline begins on January 2, 1960, the date when then U.S. Senator Kennedy announced his intention to run for the Democratic Party presidential nomination, and concludes on November 25, 1963, when the martyred president was buried. Kennedy, the 35th United States president, was the first Roman Catholic as well as the first person born in the 20th century to be elected president. Additionally, he is the youngest individual ever elected to the office.
Document 9: John F. Kennedy autopsy: The autopsy of President John F. Kennedy was performed, beginning at about 8 p.m. EST November 22, 1963, on the day of his assassination and ending at about 12:30 AM EST November 23, 1963, at the Bethesda Naval Hospital in Bethesda, Maryland. The choice of autopsy hospital in the Washington, D.C. area was made by his widow, Jacqueline Kennedy. She chose the Bethesda Naval Hospital because President Kennedy had been a naval officer.
Document 10: John F. Kennedy assassination rifle: In March 1963, Lee Harvey Oswald, using the alias "A. Hidell," purchased by mail order a 6.5×52mm Carcano Model 91/38 infantry rifle (described by the President's Commission on the Assassination of President Kennedy as a "Mannlicher–Carcano" ) rifle with a telescopic sight. He also purchased a revolver from a different company, by the same method. The Hidell alias was determined from multiple sources to be Oswald. It is officially accepted that the rifle was fired by Oswald from the Texas School Book Depository in Dallas, Texas, to assassinate United States President John F. Kennedy as his motorcade drove by on November 22, 1963. Photographs of Oswald holding the rifle, a palmprint found upon examination of the rifle, and detective work tracing its sale, all eventually led to Oswald. Marina Oswald later testified she was told by Lee that the rifle was also used before in an attempt to assassinate retired U.S. Army General Edwin Walker in Dallas.
Document 11: Gus Grissom: Lieutenant Colonel Virgil Ivan "Gus" Grissom (April 3, 1926 – January 27, 1967) was one of the original NASA Project Mercury astronauts, a United States Air Force test pilot, and a mechanical engineer. He was the second American to fly in space, and the first member of the NASA Astronaut Corps to fly in space twice.
Document 12: Joseph P. Kerwin: Joseph Peter Kerwin, M.D. (born February 19, 1932), (Capt, USN, Ret.), is an American physician and former NASA astronaut, who served as Science Pilot for the Skylab 2 mission from May 25–June 22, 1973. He was the first physician to be selected for astronaut training.
Document 13: Wally Schirra: Walter Marty "Wally" Schirra Jr. (March 12, 1923 – May 3, 2007), (CAPT, USN), was an American naval officer and aviator, aeronautical engineer, test pilot, and one of the original seven astronauts chosen for Project Mercury, United States first effort to put humans in space. He flew the six-orbit, nine-hour Mercury-Atlas 8 mission on October 3, 1962, becoming the fifth American, and the ninth human, to ride a rocket into space. In the two-man Gemini program, he achieved the first space rendezvous, station-keeping his Gemini 6A spacecraft within 1 ft of the sister Gemini 7 spacecraft in December 1965. In October 1968, he commanded Apollo 7, an 11-day low Earth orbit shakedown test of the three-man Apollo Command/Service Module. He was the first person to go into space three times, and the only person to have flown in Mercury, Gemini, and Apollo, logging a total of 295 hours and 15 minutes in space. He retired from the U.S. Navy at the rank of Captain and from NASA after his Apollo flight, becoming a consultant to CBS News for its coverage of the subsequent Apollo flights. He joined Walter Cronkite as co-anchor for the seven Moon landing missions.
Document 14: Russell Colley: Russell Colley was a U. S. mechanical engineer who played a role in creating the spacesuits worn by the Project Mercury astronauts, including fitting Alan B. Shepard Jr. for his historic ride as America's first man in space on May 5, 1961.
Document 15: John F. Kennedy: John Fitzgerald "Jack" Kennedy (May 29, 1917 – November 22, 1963), commonly referred to by his initials JFK, was an American statesman who served as the 35th President of the United States from January 1961 until his assassination in November 1963. Kennedy served at the height of the Cold War, and much of his presidency focused on managing relations with the Soviet Union. He was a member of the Democratic Party who represented Massachusetts in the United States House of Representatives and the United States Senate prior to becoming president.
ground_truth: Bethesda Naval Medical Center