natural helpers
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TOTAL DOCUMENTS
25
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H-INDEX
8
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2018 ◽
Vol 24
(3)
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pp. 330-337
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Keyword(s):
2016 ◽
Vol 65
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pp. 17-25
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2013 ◽
Vol 35
(9)
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pp. 1463-1467
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2011 ◽
Vol 14
(4)
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pp. 657-663
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Keyword(s):
2000 ◽
Vol 81
(1)
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pp. 22-31
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1997 ◽
Vol 24
(4)
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pp. 432-451
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1988 ◽
Vol 2
(1)
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pp. 73-90
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