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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1987 2
1988 1
1989 1
1990 2
1991 2
1992 1
1993 1
1994 2
1995 3
1996 6
1997 2
1998 3
2000 2
2002 3
2004 2
2005 1
2008 1
2011 1
2012 1
2013 1
2014 1
2024 0

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Page 1
Influence of training dose on nicotine discrimination in humans.
Perkins KA, D'Amico D, Sanders M, Grobe JE, Wilson A, Stiller RL. Perkins KA, et al. Psychopharmacology (Berl). 1996 Jul;126(2):132-9. doi: 10.1007/BF02246348. Psychopharmacology (Berl). 1996. PMID: 8856832 Clinical Trial.
Nicotine discrimination in male and female smokers.
Perkins KA, DiMarco A, Grobe JE, Scierka A, Stiller RL. Perkins KA, et al. Psychopharmacology (Berl). 1994 Dec;116(4):407-13. doi: 10.1007/BF02247470. Psychopharmacology (Berl). 1994. PMID: 7701041 Clinical Trial.
37 results