{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T19:00:49Z","timestamp":1764961249237,"version":"3.46.0"},"reference-count":0,"publisher":"BMJ","issue":"5756","license":[{"start":{"date-parts":[[1971,5,1]],"date-time":"1971-05-01T00:00:00Z","timestamp":41904000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.bmj.com\/company\/legal-information\/terms-conditions\/legal-information\/tdm-licencepolicy"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Br Med J"],"published-print":{"date-parts":[[1971,5,1]]},"abstract":"<jats:p>The sera from 117 patients with diseases associated with a high production of monoclonal IgM were analysed for the presence of low molecular weight (7s) IgM by using a simple thin-layer Sephadex technique. 7s IgM was found in the sera of patients with myelomata (66%), lymphomata (45%), and Waldenstr\u00f6m's macroglobulinaemia (20%), but was absent from the sera of patients with benign monoclonal macroglobulinaemia.<\/jats:p>\n                  <jats:p>This technique provides a cheap and practical test which may be valuable in selecting patients with lymphomata from those with benign lesions.<\/jats:p>","DOI":"10.1136\/bmj.2.5756.260","type":"journal-article","created":{"date-parts":[[2009,4,8]],"date-time":"2009-04-08T15:21:07Z","timestamp":1239204067000},"page":"260-261","source":"Crossref","is-referenced-by-count":22,"title":["Clinical Significance of 7s IgM in Monoclonal IgM Diseases"],"prefix":"10.1136","volume":"2","author":[{"given":"Paul M.","family":"Carter","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John R.","family":"Hobbs","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[1971,5,1]]},"container-title":["BMJ"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/data.bmj.org\/tdm\/10.1136\/bmj.2.5756.260","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bmj.2.5756.260","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T18:41:28Z","timestamp":1764960088000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.bmj.com\/lookup\/doi\/10.1136\/bmj.2.5756.260"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1971,5,1]]},"references-count":0,"journal-issue":{"issue":"5756","published-online":{"date-parts":[[1971,5,1]]},"published-print":{"date-parts":[[1971,5,1]]}},"alternative-id":["10.1136\/bmj.2.5756.260"],"URL":"https:\/\/doi.org\/10.1136\/bmj.2.5756.260","relation":{},"ISSN":["0007-1447","1468-5833"],"issn-type":[{"type":"print","value":"0007-1447"},{"type":"electronic","value":"1468-5833"}],"subject":[],"published":{"date-parts":[[1971,5,1]]}}}