For healthcare professionals only

Clinical Review

The brain, circadian rhythms, and clock genes

BMJ 1998; 317 doi: https://doi.org/10.1136/bmj.317.7174.1704 (Published 19 December 1998) Cite this as: BMJ 1998;317:1704

Article usage

Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.

Usage statistics: July 2003 to June 2018

Rendering graph...
AbstractFullPdf
Jul 2003064051
Aug 2003142248
Sep 2003067790
Oct 2003096683
Nov 2003184683
Dec 2003346244
Jan 2004182575
Feb 2004092388
Mar 20040849107
Apr 2004267575
May 20041061472
Jun 2004040443
Jul 2004251331
Aug 2004153051
Sep 2004242768
Oct 200413455130
Nov 2004491368311
Dec 200440822104
Jan 2005241068123
Feb 20052081556
Mar 2005311124102
Apr 200520971109
May 200512948120
Jun 20051065476
Jul 20051045637
Aug 2005536740
Sep 20051056880
Oct 200513687101
Nov 2005171047171
Dec 2005864374
Jan 2006542256
Feb 20061086481
Mar 2006141014113
Apr 200616853117
May 2006555168
Jun 2006320018
Jul 2006933127
Aug 20061127551
Sep 20061984075
Oct 20062281681
Nov 200619965122
Dec 20061159050
Jan 20072168680
Feb 2007979048
Mar 20071985376
Apr 20071072060
May 20071168066
Jun 2007664958
Jul 2007539548
Aug 2007941240
Sep 2007659248
Oct 20071476656
Nov 20071196965
Dec 2007458639
Jan 2008862351
Feb 2008660759
Mar 2008773067
Apr 2008774060
May 2008264545
Jun 2008556941
Jul 2008641822
Aug 2008435634
Sep 20081665344
Oct 20081468550
Nov 20081978557
Dec 2008956735
Jan 200930924729
Feb 200928519337
Mar 200929117825
Apr 200929618432
May 200925210527
Jun 20091728916
Jul 20091275518
Aug 20091306712
Sep 20092198118
Oct 200923713322
Nov 200930016623
Dec 200918712722
Jan 20102277920
Feb 201022513523
Mar 201029812623
Apr 201025714340
May 201023911823
Jun 20101659324
Jul 20101249320
Aug 20101217023
Sep 20102738612
Oct 201037711016
Nov 201036812219
Dec 2010283756
Jan 20113146716
Feb 20113449015
Mar 201140310423
Apr 20112967816
May 20112694710
Jun 2011190336
Jul 201115210513
Aug 2011827027
Sep 20111631541
Oct 20112046038
Nov 2011339752
Dec 2011036053
Jan 201228417635
Feb 2012270636
Mar 2012189304
Apr 20121794012
May 201248339
Jun 201211306
Jul 201214246
Aug 201259163
Sep 2012105359
Oct 20121814912
Nov 20121934211
Dec 20121264214
Jan 201380258
Feb 201349174
Mar 201384144
Apr 2013105194
May 2013173308
Jun 201395215
Jul 201366215
Aug 201350114
Sep 201389183
Oct 20131647120
Nov 20131594510
Dec 2013188419
Jan 2014260345
Feb 2014134333
Mar 2014165313
Apr 2014154374
May 201417890
Jun 20147080
Jul 201411409
Aug 201411721
Sep 20149350
Oct 20143901
Nov 20148560
Dec 201410294
Jan 201510586
Feb 2015103203
Mar 2015143225
Apr 201585131
May 2015106171
Jun 20156022
Jul 20157454
Aug 2015125112
Sep 20157441
Oct 20157793
Nov 2015116194
Dec 201510994
Jan 20169141
Feb 201685162
Mar 2016112182
Apr 201695244
May 201610681
Jun 20167984
Jul 20168154
Aug 20167482
Sep 2016119153
Oct 2016154194
Nov 2016102160
Dec 20167320
Jan 2017107103
Feb 2017115124
Mar 2017125334
Apr 2017102204
May 2017135141
Jun 201749100
Jul 20178420
Aug 20178152
Sep 20177161
Oct 2017102153
Nov 201774124
Dec 20178271
Jan 20188171
Feb 201892112
Mar 201867111
Apr 201876241
May 20187793
Jun 20185830
Total16739518845930