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

Year Number of Results
1987 1
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1997 1
1998 2
2014 1
2023 0
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Validation, risk-benefit analysis.
Kieffer RG. Kieffer RG. PDA J Pharm Sci Technol. 1995 Sep-Oct;49(5):249-52. PDA J Pharm Sci Technol. 1995. PMID: 7489200 No abstract available.
Standard setting.
Kieffer RG. Kieffer RG. J Parenter Sci Technol. 1987 May-Jun;41(3):80-2. J Parenter Sci Technol. 1987. PMID: 3612413 No abstract available.
Global trends, needs, issues.
Kieffer RG. Kieffer RG. PDA J Pharm Sci Technol. 1998 Jul-Aug;52(4):151-3. PDA J Pharm Sci Technol. 1998. PMID: 9752708
Validation and the human element.
Kieffer RG. Kieffer RG. PDA J Pharm Sci Technol. 1998 Mar-Apr;52(2):52-4. PDA J Pharm Sci Technol. 1998. PMID: 9610167