链接： http://www.ncbi.nlm.nih.gov/pubmed/22687217


[size=0.8465em][size=10.909090995788574px][size=10.909090995788574px]Br J Gen Pract. 2012 Jun;62(599):314. doi: 10.3399/bjgp12X649197.
Tobacco harm reduction: thinking the unthinkable.[size=0.923em][size=11.818181991577148px]Lawson E.