Design and methodological considerations in the National Cooperative Gallstone Study: A multicenter clinical trial

John M. Lachin, Jay W. Marks, Leslie J. Schoenfield, Protocol Committee NCGS Protocol Committee, Malcolm P. Tyor, Peter H. Bennett, Scott M Grundy, William G M Hardison, Lawrence W. Shaw, Johnson L. Thistle, Z. R. Vlahcevic, Cooperative Gallstone Study Group National Cooperative Gallstone Study Group

Research output: Contribution to journalArticlepeer-review

38 Scopus citations
Original languageEnglish (US)
Pages (from-to)177-229
Number of pages53
JournalControlled Clinical Trials
Issue number3
StatePublished - Sep 1981

ASJC Scopus subject areas

  • Pharmacology

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