TOPIC 31
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[Occurrence probability] [Topic drift]

Scale = 0 epochs = 1
1974-2005
TERM SCORE
operate 1293.99
gastric 1243.49
stomach 488.76
author 378.16
esophageal 369.49
intestinal 246.55
ulcer 214.49
gastrointestinal 208.94
post 203.71
esophagus 195.99
upper 184.46
pre 181.48
perform 168.35
fistula 133.49
gastrectomy 128.49


Scale = 1 epochs = 2
1974-1989
TERM SCORE
operate 892.93
gastric 757.87
stomach 362.71
author 209.76
esophageal 175.12
intestinal 173.14
ulcer 144.79
esophagus 120.27
perform 114.15
pre 111.27
upper 111.23
gastrointestinal 109.30
post 109.00
resection 97.55
gastrectomy 85.10
1990-2005
TERM SCORE
gastric 485.62
operate 401.06
esophageal 194.37
author 168.39
stomach 126.04
gastrointestinal 99.64
post 94.70
esophagus 75.72
intestinal 73.41
upper 73.22
pre 70.20
ulcer 69.70
fistula 63.14
perform 54.19
endoscopic 53.34


Scale = 2 epochs = 4
1974-1981
TERM SCORE
operate 511.63
gastric 367.58
stomach 220.63
intestinal 109.96
ulcer 84.11
gastrointestinal 73.74
author 73.71
resection 67.60
pre 65.31
esophageal 63.52
upper 62.32
esophagus 58.90
post 58.76
perform 52.29
anastomosis 41.72
1982-1989
TERM SCORE
gastric 390.28
operate 381.30
stomach 142.07
author 136.04
esophageal 111.60
intestinal 63.17
perform 61.86
esophagus 61.36
ulcer 60.68
post 50.23
upper 48.91
pre 45.95
gastrectomy 44.81
total 39.92
gastrointestinal 35.55
1990-1997
TERM SCORE
gastric 279.69
operate 251.79
author 135.83
esophageal 107.83
stomach 76.30
post 50.25
gastrointestinal 47.98
upper 44.06
ulcer 41.27
esophagus 40.59
pre 37.59
intestinal 34.29
endoscopic 33.02
fistula 31.02
perform 30.43
1998-2005
TERM SCORE
gastric 205.93
operate 149.26
esophageal 86.53
gastrointestinal 51.65
stomach 49.73
post 44.45
intestinal 39.11
esophagus 35.13
pre 32.61
author 32.56
fistula 32.12
upper 29.15
ulcer 28.42
perform 23.76
oesophageal 20.99


Scale = 3 epochs = 8
1974-1977
TERM SCORE
operate 297.97
gastric 189.17
stomach 120.43
intestinal 55.62
ulcer 47.47
gastrointestinal 39.79
esophageal 35.54
pre 34.41
resection 33.96
author 33.83
upper 32.20
esophagus 30.50
perform 29.22
post 28.81
total 20.78
1978-1981
TERM SCORE
operate 213.65
gastric 178.40
stomach 100.19
intestinal 54.34
author 39.88
ulcer 36.63
gastrointestinal 33.95
resection 33.64
pre 30.90
upper 30.12
post 29.95
esophagus 28.40
esophageal 27.97
perform 23.07
tube 21.67
1982-1985
TERM SCORE
gastric 226.10
operate 189.47
stomach 75.32
author 63.52
esophageal 52.77
intestinal 34.54
esophagus 33.15
ulcer 32.31
perform 30.73
post 26.28
upper 24.05
gastrectomy 23.50
pre 22.64
total 20.74
gastrointestinal 17.34
1986-1989
TERM SCORE
operate 191.82
gastric 164.18
author 72.51
stomach 66.75
esophageal 58.82
perform 31.12
intestinal 28.63
ulcer 28.36
esophagus 28.21
upper 24.85
post 23.95
pre 23.31
gastrectomy 21.30
total 19.17
gastrointestinal 18.21
1990-1993
TERM SCORE
gastric 144.44
operate 137.75
author 81.66
esophageal 50.08
stomach 43.70
post 23.79
gastrointestinal 23.68
upper 23.38
esophagus 21.88
ulcer 20.63
pre 20.33
endoscopic 19.45
intestinal 19.17
postoperative 17.73
perform 16.09
1994-1997
TERM SCORE
gastric 135.24
operate 114.03
esophageal 57.75
author 54.16
stomach 32.60
post 26.46
gastrointestinal 24.30
upper 20.68
ulcer 20.63
esophagus 18.71
pre 17.25
fistula 17.07
intestinal 15.12
perform 14.33
endoscopic 13.56
1998-2001
TERM SCORE
gastric 105.68
operate 88.14
esophageal 49.39
stomach 27.38
gastrointestinal 27.21
intestinal 22.89
post 22.43
esophagus 19.41
upper 17.77
author 17.32
pre 16.15
fistula 14.91
ulcer 14.35
oesophageal 12.26
perform 11.81
2002-2005
TERM SCORE
gastric 100.24
operate 61.12
esophageal 37.14
gastrointestinal 24.44
stomach 22.35
post 22.01
fistula 17.20
pre 16.45
intestinal 16.22
esophagus 15.71
author 15.23
ulcer 14.06
perform 11.95
upper 11.38
endoscopic 9.94


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