{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T03:31:32Z","timestamp":1775014292132,"version":"3.50.1"},"reference-count":0,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[1972,8,1]],"date-time":"1972-08-01T00:00:00Z","timestamp":81475200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1972,8,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Studies of lung function were performed at rest in a group of 40 opium smokers. Most of the subjects were asymptomatic. Functionally, they were divided into two groups. Group A had evidence of airflow obstruction as judged by the forced expiratory volumes. This group comprised most of the symptomatic subjects and appeared functionally similar to hospital patients with chronic obstructive lung disease. Group B had no evidence of airflow obstruction but had hyperinflation and associated decrease in diffusing capacity. It is postulated that this group represented an early manifestation of peripheral airway disease. Opium smoking appeared to be responsible for this lesion, although the concomitant effect of cigarette smoking could not be excluded. The incidence and significance of opium reticulation is discussed.<\/jats:p>","DOI":"10.1164\/arrd.1972.106.2.239","type":"journal-article","created":{"date-parts":[[2015,10,4]],"date-time":"2015-10-04T22:53:54Z","timestamp":1443999234000},"page":"239-245","source":"Crossref","is-referenced-by-count":4,"title":["The Effects of Opium Smoking in Cigarette Smokers"],"prefix":"10.1093","volume":"106","author":[{"given":"S. C.","family":"Poh","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[1972,8,1]]},"container-title":["American Review of Respiratory Disease"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/ajrccm\/article-pdf\/106\/2\/239\/67699826\/ajrccm_106_2_239.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/ajrccm\/article-pdf\/106\/2\/239\/67699826\/ajrccm_106_2_239.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T02:17:48Z","timestamp":1775009868000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/ajrccm\/article\/106\/2\/239\/8567425"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1972,8,1]]},"references-count":0,"journal-issue":{"issue":"2","published-online":{"date-parts":[[1972,8,1]]},"published-print":{"date-parts":[[1972,8,1]]}},"URL":"https:\/\/doi.org\/10.1164\/arrd.1972.106.2.239","relation":{},"ISSN":["0003-0805"],"issn-type":[{"value":"0003-0805","type":"print"}],"subject":[],"published-other":{"date-parts":[[1972,8]]},"published":{"date-parts":[[1972,8,1]]}}}