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Volume 53, Issue suppl 3
The study of human sleep: a historical perspective
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Original article
The study of human sleep: a historical perspective
Online download statistics by month:
Online download statistics by month: July 1999 to October 2024
Abstract
Full
Pdf
Jul 1999
0
0
1
Aug 1999
0
4
18
Sep 1999
0
6
3
Oct 1999
0
6
2
Nov 1999
0
8
0
Dec 1999
0
0
1
Jan 2000
0
7
6
Feb 2000
0
8
6
Mar 2000
0
7
2
Apr 2000
0
10
7
May 2000
0
18
16
Jun 2000
0
13
6
Jul 2000
0
3
2
Aug 2000
0
20
6
Sep 2000
0
6
7
Oct 2000
0
9
5
Nov 2000
0
12
3
Dec 2000
0
9
6
Jan 2001
0
6
2
Feb 2001
0
13
12
Mar 2001
0
8
5
Apr 2001
0
13
0
May 2001
0
10
2
Jun 2001
0
11
1
Jul 2001
0
10
2
Aug 2001
0
10
1
Sep 2001
0
11
5
Oct 2001
0
10
2
Nov 2001
0
11
0
Dec 2001
0
9
4
Jan 2002
1
16
1
Feb 2002
0
8
0
Mar 2002
0
26
2
Apr 2002
0
20
6
May 2002
0
19
2
Jun 2002
0
18
3
Jul 2002
1
10
5
Aug 2002
0
10
4
Sep 2002
0
11
11
Oct 2002
0
10
7
Nov 2002
0
20
22
Dec 2002
0
22
17
Jan 2003
0
2
10
Feb 2003
0
19
6
Mar 2003
0
14
5
Apr 2003
0
4
6
May 2003
0
7
7
Jun 2003
0
8
16
Jul 2003
0
15
10
Aug 2003
0
17
16
Sep 2003
0
21
8
Oct 2003
0
37
1
Nov 2003
0
40
10
Dec 2003
0
32
12
Jan 2004
0
38
8
Feb 2004
0
32
10
Mar 2004
0
41
10
Apr 2004
0
38
10
May 2004
0
48
8
Jun 2004
0
40
4
Jul 2004
0
39
8
Aug 2004
0
57
3
Sep 2004
0
67
21
Oct 2004
13
25
11
Nov 2004
8
28
18
Dec 2004
12
83
11
Jan 2005
14
44
13
Feb 2005
8
65
28
Mar 2005
12
67
48
Apr 2005
6
52
14
May 2005
6
48
7
Jun 2005
6
49
24
Jul 2005
3
32
7
Aug 2005
6
39
16
Sep 2005
4
79
16
Oct 2005
8
66
14
Nov 2005
10
103
14
Dec 2005
9
60
19
Jan 2006
6
54
13
Feb 2006
2
37
9
Mar 2006
5
100
21
Apr 2006
8
65
20
May 2006
4
62
13
Jun 2006
3
49
13
Jul 2006
2
42
21
Aug 2006
2
25
10
Sep 2006
0
44
14
Oct 2006
1
67
32
Nov 2006
6
59
20
Dec 2006
5
51
15
Jan 2007
12
49
19
Feb 2007
10
56
18
Mar 2007
21
64
31
Apr 2007
47
14
13
May 2007
50
11
14
Jun 2007
24
13
10
Jul 2007
16
17
4
Aug 2007
24
11
12
Sep 2007
21
10
10
Oct 2007
28
7
7
Nov 2007
30
9
8
Dec 2007
28
12
8
Jan 2008
29
10
8
Feb 2008
30
8
5
Mar 2008
22
8
6
Apr 2008
27
12
7
May 2008
14
3
1
Jun 2008
9
4
1
Jul 2008
21
3
2
Aug 2008
23
5
4
Sep 2008
42
6
7
Oct 2008
31
1
1
Nov 2008
24
4
4
Dec 2008
16
3
3
Jan 2009
23
5
2
Feb 2009
28
6
1
Mar 2009
23
4
5
Apr 2009
26
2
1
May 2009
12
5
5
Jun 2009
6
1
1
Jul 2009
15
2
2
Aug 2009
12
4
1
Sep 2009
14
11
5
Oct 2009
31
7
3
Nov 2009
14
3
4
Dec 2009
16
1
1
Jan 2010
33
3
3
Feb 2010
13
8
0
Mar 2010
29
9
3
Apr 2010
31
16
3
May 2010
41
7
3
Jun 2010
25
3
6
Jul 2010
26
1
2
Aug 2010
18
4
1
Sep 2010
38
9
7
Oct 2010
27
7
6
Nov 2010
26
7
5
Dec 2010
13
2
1
Jan 2011
8
8
3
Feb 2011
25
5
5
Mar 2011
29
2
1
Apr 2011
17
2
2
May 2011
20
3
1
Jun 2011
19
1
3
Jul 2011
20
0
3
Aug 2011
30
0
0
Sep 2011
30
4
3
Oct 2011
16
4
4
Nov 2011
25
11
3
Dec 2011
9
21
8
Jan 2012
5
11
2
Feb 2012
7
24
7
Mar 2012
4
28
14
Apr 2012
10
38
12
May 2012
12
24
22
Jun 2012
5
40
11
Jul 2012
10
13
12
Aug 2012
6
27
11
Sep 2012
14
34
17
Oct 2012
24
38
17
Nov 2012
0
39
22
Dec 2012
0
26
12
Jan 2013
0
51
11
Feb 2013
0
41
7
Mar 2013
0
51
24
Apr 2013
0
41
21
May 2013
0
55
21
Jun 2013
1
18
4
Jul 2013
5
15
2
Aug 2013
2
18
6
Sep 2013
5
25
11
Oct 2013
11
24
6
Nov 2013
8
27
4
Dec 2013
4
32
9
Jan 2014
5
32
8
Feb 2014
7
68
14
Mar 2014
12
73
15
Apr 2014
13
82
15
May 2014
10
82
10
Jun 2014
8
33
7
Jul 2014
10
65
12
Aug 2014
6
74
5
Sep 2014
9
47
17
Oct 2014
19
37
5
Nov 2014
6
13
1
Dec 2014
8
12
6
Jan 2015
1
18
9
Feb 2015
1
21
8
Mar 2015
15
77
12
Apr 2015
9
70
12
May 2015
2
80
8
Jun 2015
6
47
7
Jul 2015
4
35
15
Aug 2015
3
63
12
Sep 2015
8
72
18
Oct 2015
5
42
3
Nov 2015
11
50
9
Dec 2015
11
78
12
Jan 2016
17
72
18
Feb 2016
8
82
9
Mar 2016
3
82
7
Apr 2016
4
83
9
May 2016
13
82
16
Jun 2016
9
43
5
Jul 2016
8
53
6
Aug 2016
5
31
16
Sep 2016
8
58
29
Oct 2016
33
90
25
Nov 2016
5
72
21
Dec 2016
6
78
13
Jan 2017
6
134
22
Feb 2017
11
95
20
Mar 2017
6
73
16
Apr 2017
7
112
18
May 2017
9
120
12
Jun 2017
13
71
25
Jul 2017
36
33
13
Aug 2017
39
27
20
Sep 2017
130
126
19
Oct 2017
157
149
24
Nov 2017
187
172
42
Dec 2017
164
150
22
Jan 2018
136
130
12
Feb 2018
162
132
27
Mar 2018
165
147
35
Apr 2018
318
306
27
May 2018
243
233
37
Jun 2018
158
154
30
Jul 2018
219
215
32
Aug 2018
365
361
30
Sep 2018
495
491
29
Oct 2018
608
602
60
Nov 2018
708
702
49
Dec 2018
592
586
37
Jan 2019
549
511
68
Feb 2019
495
472
104
Mar 2019
522
500
67
Apr 2019
565
549
77
May 2019
493
483
40
Jun 2019
300
290
44
Jul 2019
414
401
45
Aug 2019
363
351
32
Sep 2019
451
441
67
Oct 2019
745
727
59
Nov 2019
712
679
77
Dec 2019
559
538
51
Jan 2020
562
549
51
Feb 2020
485
462
60
Mar 2020
459
430
53
Apr 2020
429
403
68
May 2020
381
365
53
Jun 2020
231
229
41
Jul 2020
217
214
27
Aug 2020
199
183
31
Sep 2020
317
297
44
Oct 2020
478
454
51
Nov 2020
493
447
71
Dec 2020
396
382
141
Jan 2021
472
444
70
Feb 2021
540
516
73
Mar 2021
510
481
108
Apr 2021
429
407
94
May 2021
370
355
53
Jun 2021
239
246
39
Jul 2021
248
250
39
Aug 2021
193
193
25
Sep 2021
392
394
44
Oct 2021
421
367
73
Nov 2021
324
211
60
Dec 2021
347
291
48
Jan 2022
370
321
66
Feb 2022
578
527
96
Mar 2022
534
442
88
Apr 2022
482
419
95
May 2022
397
324
85
Jun 2022
210
183
72
Jul 2022
212
170
61
Aug 2022
222
196
81
Sep 2022
415
347
97
Oct 2022
416
360
135
Nov 2022
442
348
116
Dec 2022
229
182
70
Jan 2023
267
205
99
Feb 2023
342
267
116
Mar 2023
429
342
165
Apr 2023
296
221
148
May 2023
267
199
136
Jun 2023
222
168
89
Jul 2023
221
193
91
Aug 2023
224
182
121
Sep 2023
284
195
63
Oct 2023
266
223
75
Nov 2023
300
238
59
Dec 2023
265
200
30
Jan 2024
194
114
18
Feb 2024
213
167
37
Mar 2024
459
355
69
Apr 2024
352
272
101
May 2024
207
98
38
Jun 2024
229
4
4
Jul 2024
243
3
4
Aug 2024
140
2
8
Sep 2024
220
4
5
Oct 2024
303
3
5
Total
32683
33241
7221
Read the full text or download the PDF:
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