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The association of waterpipe tobacco smoking with later initiation of cigarette smoking: a systematic review and meta-analysis exploring the gateway theory
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Online download statistics by month: July 2019 to September 2020

AbstractFullPdf
Jul 20193552821
Aug 20194206831
Sep 2019108213
Oct 2019451354
Nov 2019687334
Dec 2019220318
Jan 202068213
Feb 202086215
Mar 202085232
Apr 202093194
May 202061192
Jun 202075155
Jul 202037162
Aug 202032430955
Sep 202034132753
Total3411986202