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

Year Number of Results
1957 1
1958 3
1959 1
1972 1
1973 2
1974 1
1976 1
1977 2
1979 1
1980 4
1981 1
1982 4
1985 2
1986 2
1987 2
1988 1
1989 5
1990 4
1991 3
1992 2
1993 5
1994 2
1995 3
1996 4
1997 4
1998 4
1999 1
2001 2
2002 1
2004 2
2005 2
2007 1
2012 1
2013 1
2015 1
2025 0

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Page 1
Pharmacokinetics of technetium-99m diphosphonate.
Castronovo FP, Guiberteau MJ, Berg G, McKusick KA, Callahan RJ, Potsaid MS. Castronovo FP, et al. Among authors: callahan rj. J Nucl Med. 1977 Aug;18(8):809-14. J Nucl Med. 1977. PMID: 874170 Free article.
In praise of the mighty red cell.
Callahan RJ. Callahan RJ. J Nucl Med. 1990 Dec;31(12):2044-5. J Nucl Med. 1990. PMID: 2266406 Free article. No abstract available.
Assessing nuclear competency.
Callahan RJ. Callahan RJ. Am Pharm. 1979 Jun;19(6):26. doi: 10.1016/s0160-3450(15)32851-8. Am Pharm. 1979. PMID: 463734 No abstract available.
Self-organized patchiness in asthma as a prelude to catastrophic shifts.
Venegas JG, Winkler T, Musch G, Vidal Melo MF, Layfield D, Tgavalekos N, Fischman AJ, Callahan RJ, Bellani G, Harris RS. Venegas JG, et al. Among authors: callahan rj. Nature. 2005 Apr 7;434(7034):777-82. doi: 10.1038/nature03490. Epub 2005 Mar 16. Nature. 2005. PMID: 15772676
76 results