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    "name": "Kołczan Książek",
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    "url": "https://www.kolczanksiazek.pl"
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  "formats": "Każda podstrona ma dwie wersje z tymi samymi danymi: JSON (adres strony + .json) i markdown (adres strony + .md). Do każdego `url` w tym dokumencie można dopisać .json albo .md.",
  "title": "EKG jasno i zrozumiale. Wydanie 4",
  "subtitle": null,
  "slug": "ekg-jasno-i-zrozumiale-wydanie-4",
  "url": "https://www.kolczanksiazek.pl/andrew-houghton/ekg-jasno-i-zrozumiale-wydanie-4",
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  "authors": [
    {
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  "series": [],
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  "description": "IV",
  "editions": [
    {
      "title": "EKG jasno i zrozumiale. Wydanie 4",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/andrew-houghton/ekg-jasno-i-zrozumiale-wydanie-4/9788375221251",
      "publisher": "Alfa Medica Press",
      "publisher_series": [],
      "translators": [],
      "medium": "paper",
      "duration_seconds": null,
      "narrators": [],
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      "cover_artists": [],
      "isbn": "978-83-7522-125-1",
      "pages": 312,
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      "language": "pl_PL",
      "cover": "https://quivercdn.com/covers/alfa-medica-press/andrew-houghton/ekg-jasno-i-zrozumiale-wydanie-4_978-83-7522-125-1-5f8ce57f.jpg?v=2026-09-02%2022%3A09%3A09"
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