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Smoking duration alone provides stronger risk estimates of chronic obstructive pulmonary disease than pack-years
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Jan 20185506214123
Feb 20187907248
Mar 20184907041
Apr 20181185985251
May 201821061967469
Jun 2018838674192
Jul 2018766505133
Aug 201860241587
Sep 2018631334225
Oct 2018599278221
Nov 2018350335205
Dec 2018291296170
Jan 2019323324397
Feb 2019305299445
Mar 2019404408505
Apr 2019496496550
May 2019499498467
Jun 2019395395469
Jul 2019451443408
Aug 2019491481251
Sep 2019470463340
Oct 2019644626126
Nov 201961558876
Dec 201950549360
Jan 202063362279
Feb 202048046480
Mar 2020485469108
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May 202036935862
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Jul 202037636269
Aug 202031829835
Sep 202034830245
Oct 202032228665
Nov 202032729371
Dec 202033431951
Jan 202134932379
Feb 202141939876
Mar 2021436389130
Total25672172457384