Accepted Article This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/jocn.14215 This article is protected by copyright. All rights reserved. DR. LUCYNA TOMASZEK (Orcid ID : 0000-0002-1909-9827) Article type : Original Article Knowledge, compliance with good clinical practices and barriers to effective control of postoperative pain among nurses from hospitals with and without a “Hospital without Pain” certificate Lucyna Tomaszek, Grażyna Dębska Authors: Lucyna Tomaszek, MD, PhD, Assistant Professor, Faculty of Medicine and Health Sciences, Andrzej Frycz-Modrzewski Krakow University; Grażyna Dębska, MD, PhD, Assistant Professor, Faculty of Medicine and Health Sciences, Andrzej Frycz-Modrzewski Krakow University Correspondence: Lucyna Tomaszek, Faculty of Medicine and Health Sciences, Andrzej Frycz-Modrzewski Krakow University, Gustawa Herlinga-Grudzińskiego 1, 30-705 Krakow, Poland. Telephone: +48 18 267 60 60 int. 243; Fax: +48 18 267 60 69; E-mail: ltomaszek@igrabka.edu.pl Contributions Study design: LT; data collection and analysis: LT; manuscript preparation: LT, GD.