N-acetylpara-aminophenol as an analgesic; a controlled clinical trial using the method of sequential analysis
- PMID: 13364394
- PMCID: PMC2035889
- DOI: 10.1136/bmj.2.5001.1096
N-acetylpara-aminophenol as an analgesic; a controlled clinical trial using the method of sequential analysis
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