{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T07:43:55Z","timestamp":1760168635871,"version":"build-2065373602"},"reference-count":44,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2021,9,7]],"date-time":"2021-09-07T00:00:00Z","timestamp":1630972800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cancers"],"abstract":"<jats:p>Background: Online information gathering can increase patients\u2019 engagement in decision-making. The quality of online resources available for monoclonal gammopathy of undetermined significance (MGUS) was evaluated. Methods: 900 websites from Google, Bing, Yahoo, and 150 YouTube videos were assessed. Results: The websites did not differ regarding their search rank or between the search engines. The median time since last update was 24 months. The 86 unique websites showed a medium to poor general quality (JAMA score 3\/4, only 8.1% websites with a valid HON certificate). The patient- (user-) focused quality was poor (sum DISCERN score 27\/80 points). The reading level was difficult (11th US school grade). The content level was very low (13\/50 points). 12.8% of websites contained misleading\/wrong facts. Websites provided by scientific\/governmental organizations had a higher content level. For the 61 unique videos, the median time since upload was 34 months. The videos showed a medium general quality (HON Foundation score). The patient- (user-) focused quality was poor (sum DISCERN score 24 points). The content level was very low (6 points). Conclusion: MGUS-relevant online sources showed a low quality that was provided on a high reading level. Incorporation of quality indices and regular review of online content is warranted.<\/jats:p>","DOI":"10.3390\/cancers13184508","type":"journal-article","created":{"date-parts":[[2021,9,7]],"date-time":"2021-09-07T10:24:25Z","timestamp":1631010265000},"page":"4508","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Accuracy and Reliability of Internet Resources for Information on Monoclonal Gammopathy of Undetermined Significance\u2014What Information Is out There for Our Patients?"],"prefix":"10.3390","volume":"13","author":[{"given":"Emma Pauline","family":"Kreutzer","sequence":"first","affiliation":[{"name":"Department of Hematology, Oncology and Rheumatology, University Hospital Heidelberg, 69120 Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sandra","family":"Sauer","sequence":"additional","affiliation":[{"name":"Department of Hematology, Oncology and Rheumatology, University Hospital Heidelberg, 69120 Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7319-3646","authenticated-orcid":false,"given":"Mark","family":"Kriegsmann","sequence":"additional","affiliation":[{"name":"Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Henrike","family":"Staemmler","sequence":"additional","affiliation":[{"name":"Department of Hematology, Oncology and Rheumatology, University Hospital Heidelberg, 69120 Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gerlinde","family":"Egerer","sequence":"additional","affiliation":[{"name":"Department of Hematology, Oncology and Rheumatology, University Hospital Heidelberg, 69120 Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katharina","family":"Kriegsmann","sequence":"additional","affiliation":[{"name":"Department of Hematology, Oncology and Rheumatology, University Hospital Heidelberg, 69120 Heidelberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,9,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1182\/blood-2017-09-807560","article-title":"How I manage monoclonal gammopathy of undetermined significance","volume":"131","author":"Go","year":"2018","journal-title":"Blood"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"e538","DOI":"10.1016\/S1470-2045(14)70442-5","article-title":"International Myeloma Working Group updated criteria for the diagnosis of multiple myeloma","volume":"15","author":"Rajkumar","year":"2014","journal-title":"Lancet Oncol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1362","DOI":"10.1056\/NEJMoa054494","article-title":"Prevalence of Monoclonal Gammopathy of Undetermined Significance","volume":"354","author":"Kyle","year":"2006","journal-title":"N. 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