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Volume 57, Issue 10
Moderate sleep deprivation produces impairments in cognitive and motor performance equivalent to legally prescribed levels of alcohol intoxication
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Moderate sleep deprivation produces impairments in cognitive and motor performance equivalent to legally prescribed levels of alcohol intoxication
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Online download statistics by month: September 2000 to September 2024
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Sep 2000
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Dec 2000
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Feb 2001
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Mar 2001
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Apr 2001
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May 2001
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Jun 2001
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Jul 2001
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Aug 2001
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Sep 2001
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Oct 2001
21
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Nov 2001
28
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Dec 2001
38
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Jan 2002
27
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Feb 2002
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Mar 2002
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Apr 2002
20
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May 2002
23
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Jun 2002
4
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Jul 2002
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Aug 2002
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Sep 2002
9
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Oct 2002
18
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Nov 2002
17
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Dec 2002
7
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3
Jan 2003
16
30
14
Feb 2003
10
27
6
Mar 2003
22
30
9
Apr 2003
14
24
5
May 2003
25
25
5
Jun 2003
11
5
2
Jul 2003
20
57
2
Aug 2003
34
39
10
Sep 2003
35
32
9
Oct 2003
47
68
15
Nov 2003
49
63
9
Dec 2003
45
32
5
Jan 2004
44
78
29
Feb 2004
35
51
20
Mar 2004
69
102
27
Apr 2004
64
87
15
May 2004
65
84
31
Jun 2004
36
43
15
Jul 2004
38
28
23
Aug 2004
36
61
30
Sep 2004
62
85
25
Oct 2004
49
185
49
Nov 2004
26
196
53
Dec 2004
32
133
48
Jan 2005
35
135
80
Feb 2005
39
165
69
Mar 2005
39
159
55
Apr 2005
35
128
70
May 2005
20
102
57
Jun 2005
45
125
46
Jul 2005
35
79
22
Aug 2005
30
63
38
Sep 2005
96
114
96
Oct 2005
95
124
58
Nov 2005
81
206
91
Dec 2005
47
100
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Jan 2006
25
69
28
Feb 2006
26
88
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Mar 2006
35
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Apr 2006
44
228
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May 2006
31
133
68
Jun 2006
20
56
28
Jul 2006
16
53
37
Aug 2006
82
77
45
Sep 2006
173
161
79
Oct 2006
332
246
114
Nov 2006
341
223
121
Dec 2006
174
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86
Jan 2007
164
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59
Feb 2007
214
174
95
Mar 2007
306
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102
Apr 2007
647
128
123
May 2007
277
49
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Jun 2007
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Jul 2007
143
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Aug 2007
125
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Sep 2007
249
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Oct 2007
360
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41
Nov 2007
369
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50
Dec 2007
230
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29
Jan 2008
262
18
38
Feb 2008
288
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57
Mar 2008
534
64
104
Apr 2008
631
234
710
May 2008
158
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Jun 2008
169
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14
Jul 2008
154
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17
Aug 2008
184
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24
Sep 2008
281
17
32
Oct 2008
366
21
38
Nov 2008
365
24
46
Dec 2008
318
31
33
Jan 2009
348
21
26
Feb 2009
384
29
47
Mar 2009
334
42
141
Apr 2009
524
128
485
May 2009
484
85
261
Jun 2009
288
31
32
Jul 2009
245
34
26
Aug 2009
218
44
32
Sep 2009
307
62
40
Oct 2009
386
55
60
Nov 2009
363
55
50
Dec 2009
232
25
26
Jan 2010
304
35
34
Feb 2010
357
42
26
Mar 2010
340
79
74
Apr 2010
593
170
270
May 2010
566
138
190
Jun 2010
196
49
30
Jul 2010
235
33
25
Aug 2010
194
61
126
Sep 2010
317
155
273
Oct 2010
424
170
171
Nov 2010
509
114
46
Dec 2010
583
68
22
Jan 2011
275
70
32
Feb 2011
334
75
40
Mar 2011
465
139
70
Apr 2011
628
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May 2011
482
110
85
Jun 2011
328
64
38
Jul 2011
196
35
15
Aug 2011
207
127
25
Sep 2011
338
83
31
Oct 2011
441
80
50
Nov 2011
408
150
75
Dec 2011
246
258
73
Jan 2012
255
204
71
Feb 2012
260
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83
Mar 2012
307
290
115
Apr 2012
486
473
381
May 2012
393
442
187
Jun 2012
267
405
125
Jul 2012
308
359
108
Aug 2012
260
406
98
Sep 2012
431
410
142
Oct 2012
542
590
164
Nov 2012
576
406
135
Dec 2012
365
309
77
Jan 2013
386
397
98
Feb 2013
461
278
131
Mar 2013
596
276
143
Apr 2013
1030
588
597
May 2013
992
685
397
Jun 2013
280
300
51
Jul 2013
311
271
52
Aug 2013
738
326
58
Sep 2013
543
483
88
Oct 2013
750
600
130
Nov 2013
779
548
187
Dec 2013
637
471
89
Jan 2014
354
531
55
Feb 2014
434
548
112
Mar 2014
580
648
111
Apr 2014
492
651
104
May 2014
517
671
102
Jun 2014
535
874
72
Jul 2014
320
896
73
Aug 2014
416
658
139
Sep 2014
713
1052
299
Oct 2014
563
615
125
Nov 2014
828
354
96
Dec 2014
402
299
78
Jan 2015
363
475
59
Feb 2015
504
298
95
Mar 2015
793
639
155
Apr 2015
521
432
157
May 2015
348
501
59
Jun 2015
220
360
44
Jul 2015
228
243
42
Aug 2015
268
260
46
Sep 2015
654
339
151
Oct 2015
443
310
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Nov 2015
565
355
118
Dec 2015
640
360
110
Jan 2016
365
306
72
Feb 2016
698
292
102
Mar 2016
661
269
118
Apr 2016
1047
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May 2016
732
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202
Jun 2016
435
287
49
Jul 2016
332
381
72
Aug 2016
544
288
63
Sep 2016
512
473
94
Oct 2016
684
580
101
Nov 2016
639
453
395
Dec 2016
494
375
101
Jan 2017
464
432
74
Feb 2017
458
254
109
Mar 2017
553
407
190
Apr 2017
657
832
505
May 2017
602
1048
543
Jun 2017
762
336
170
Jul 2017
457
244
94
Aug 2017
784
331
69
Sep 2017
897
359
97
Oct 2017
1186
385
302
Nov 2017
1433
614
435
Dec 2017
873
323
309
Jan 2018
1215
608
411
Feb 2018
1187
452
285
Mar 2018
1392
606
236
Apr 2018
1749
935
993
May 2018
1892
1179
1338
Jun 2018
726
388
284
Jul 2018
821
321
290
Aug 2018
734
374
581
Sep 2018
986
480
472
Oct 2018
1431
608
560
Nov 2018
1184
584
614
Dec 2018
979
577
482
Jan 2019
1207
855
396
Feb 2019
992
637
392
Mar 2019
1073
629
440
Apr 2019
983
537
233
May 2019
2914
2553
297
Jun 2019
984
706
157
Jul 2019
1123
790
156
Aug 2019
789
505
110
Sep 2019
908
503
176
Oct 2019
1196
646
270
Nov 2019
964
461
255
Dec 2019
720
402
202
Jan 2020
839
448
98
Feb 2020
717
398
160
Mar 2020
782
473
159
Apr 2020
839
457
168
May 2020
676
397
149
Jun 2020
677
472
112
Jul 2020
486
306
142
Aug 2020
560
347
117
Sep 2020
757
460
168
Oct 2020
972
470
159
Nov 2020
989
447
179
Dec 2020
636
385
98
Jan 2021
698
404
146
Feb 2021
889
538
97
Mar 2021
736
441
85
Apr 2021
733
406
214
May 2021
585
455
611
Jun 2021
511
463
91
Jul 2021
408
416
260
Aug 2021
492
507
602
Sep 2021
600
591
182
Oct 2021
922
654
314
Nov 2021
1086
786
193
Dec 2021
1268
1069
192
Jan 2022
839
543
183
Feb 2022
747
464
115
Mar 2022
1018
630
186
Apr 2022
996
630
180
May 2022
1187
771
191
Jun 2022
653
471
69
Jul 2022
683
457
106
Aug 2022
627
412
66
Sep 2022
787
519
125
Oct 2022
934
653
136
Nov 2022
770
490
183
Dec 2022
780
491
141
Jan 2023
824
542
241
Feb 2023
702
449
359
Mar 2023
816
518
349
Apr 2023
826
453
335
May 2023
816
398
203
Jun 2023
677
451
115
Jul 2023
704
436
210
Aug 2023
822
511
97
Sep 2023
773
506
119
Oct 2023
1055
618
174
Nov 2023
860
585
194
Dec 2023
1503
112
31
Jan 2024
1196
23
11
Feb 2024
1339
31
42
Mar 2024
1572
36
28
Apr 2024
1520
38
24
May 2024
1372
17
16
Jun 2024
1155
23
7
Jul 2024
1559
24
10
Aug 2024
2128
14
12
Sep 2024
2718
25
9
Total
144456
83713
36689
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