third-hand smoke
... that a 2010 study found eleven carcinogenic compounds in third-hand smoke?
... that a 2010 study found eleven <a href="./Carcinogen" id="mwFCs" rel="mw:WikiLink" title="Carcinogen">carcinogenic</a> compounds in <b id="mwFCw"><a href="./Third-hand_smoke" id="mwFC0" rel="mw:WikiLink" title="Third-hand smoke">third-hand smoke</a></b>?