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TOPSHOT - Britain's Queen Elizabeth II (R) speaks to Amy Barlow (L), 12, from Rawtenstall in Lancashire, who was injured in the May 22 Manchester Arena terror attack, and her mother Kathy (C) during a visit to the Royal Manchester Children's Hospital in Manchester, northwest England, on May 25, 2017 to meet injured victims of the terror attack and to thank members of staff who treated them. / AFP PHOTO / POOL / Peter Byrne (Photo credit should read PETER BYRNE/AFP/Getty Images)

TOPSHOT - Britain's Queen Elizabeth II (R) speaks to Amy Barlow (L), 12, from Rawtenstall in Lancashire, who was injured in the May 22 Manchester Arena terror attack, and her mother Kathy (C) during a visit to the Royal Manchester Children's Hospital in Manchester, northwest England, on May 25, 2017 to meet injured victims of the terror attack and to thank members of staff who treated them. / AFP PHOTO / POOL / Peter Byrne        (Photo credit should read PETER BYRNE/AFP/Getty Images)

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Britain's Queen Elizabeth II (R) speaks to Millie Robson, 15, from Co Durham, who was injured in the May 22 Manchester Arena terror attack, and her mother Marie (C) during a visit to the Royal Manchester Children's Hospital in Manchester, northwest England, on May 25, 2017 to meet injured victims of the terror attack and to thank members of staff who treated them. / AFP PHOTO / POOL / Peter Byrne (Photo credit should read PETER BYRNE/AFP/Getty Images)

Britain's Queen Elizabeth II (R) speaks to Millie Robson, 15, from Co Durham, who was injured in the May 22 Manchester Arena terror attack, and her mother Marie (C) during a visit to the Royal Manchester Children's Hospital in Manchester, northwest England, on May 25, 2017 to meet injured victims of the terror attack and to thank members of staff who treated them. / AFP PHOTO / POOL / Peter Byrne        (Photo credit should read PETER BYRNE/AFP/Getty Images)

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Britain's Queen Elizabeth II (C) speaks with staff as she visits the Royal Manchester Children's Hospital in Manchester, northwest England, on May 25, 2017 to meet victims of the Manchester Arena terror attack in the city earlier this week and to thank members of staff who treated them. / AFP PHOTO / POOL / Peter Byrne (Photo credit should read PETER BYRNE/AFP/Getty Images)

Britain's Queen Elizabeth II (C) speaks with staff as she visits the Royal Manchester Children's Hospital in Manchester, northwest England, on May 25, 2017 to meet victims of the Manchester Arena terror attack in the city earlier this week and to thank members of staff who treated them.  / AFP PHOTO / POOL / Peter Byrne        (Photo credit should read PETER BYRNE/AFP/Getty Images)

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MANCHESTER, ENGLAND - MAY 25: Queen Elizabeth II speaks to Ruth Murrell who was injured, along with her daughter Emily, 12, as she visits the Royal Manchester Children's Hospital to meet victims of the terror attack on May 25, 2017 in Manchester, England. Queen Elizabeth visited the hospital to meet victims of the Manchester Arena terror attack and to thank members of staff who treated them. (Photo by Peter Byrne/WPA Pool/Getty Images)

MANCHESTER, ENGLAND - MAY 25: Queen Elizabeth II speaks to Ruth Murrell who was injured, along with her daughter Emily, 12, as she visits the Royal Manchester Children's Hospital to meet victims of the terror attack on May 25, 2017 in Manchester, England.  Queen Elizabeth visited the hospital to meet victims of the Manchester Arena terror attack and to thank members of staff who treated them. (Photo by Peter Byrne/WPA Pool/Getty Images)

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MANCHESTER, ENGLAND - MAY 25: Queen Elizabeth II visits the Royal Manchester Children's Hospital to meet victims of the terror attack in the city earlier this week and to thank members of staff who treated them on May 25, 2017 in Manchester, England. Queen Elizabeth visited the hospital to meet victims of the Manchester Arena terror attack and to thank members of staff who treated them. (Photo by Peter Byrne/WPA Pool/Getty Images)

MANCHESTER, ENGLAND - MAY 25: Queen Elizabeth II visits the Royal Manchester Children's Hospital to meet victims of the terror attack in the city earlier this week and to thank members of staff who treated them on May 25, 2017 in Manchester, England.  Queen Elizabeth visited the hospital to meet victims of the Manchester Arena terror attack and to thank members of staff who treated them. (Photo by Peter Byrne/WPA Pool/Getty Images)