Geriatrics, a sub-specialty of medicine that focuses on elderly people
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Host Card Emulation, a presentation of a virtual and exact representation of a smart card using only software
The Ballad of Persse O'Reilly is a poem in book one of James Joyce's novel Finnegans Wake (pages 44.24 to 47.32), where the protagonist H.C.E. has been brought low by a rumor which begins to spread across Dublin, apparently concerning a sexual trespass involving two girls in Phoenix Park; however details of HCE's transgression change with each retelling of events.