National death index: Data matching for survival data analysis of heart surgery
Keyword(s):
Keyword(s):
1986 ◽
Vol 35
(1)
◽
pp. 123-123
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2004 ◽
Vol 26
(1)
◽
pp. 18-37
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Keyword(s):
2004 ◽
Vol 91
(7)
◽
pp. 1229-1235
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