Black, N. A., Thompson, E., & Sanderson, C. F. (1994). Symptoms and health status before and six weeks after open cholecystectomy: A European cohort study.ECHSS Group. European Collaborative Health Services Study Group.
Chicago-tyylinen lähdeviittausBlack, N A., E. Thompson, ja C F. Sanderson. Symptoms and Health Status Before and Six Weeks After Open Cholecystectomy: A European Cohort Study.ECHSS Group. European Collaborative Health Services Study Group. 1994.
MLA-viiteBlack, N A., E. Thompson, ja C F. Sanderson. Symptoms and Health Status Before and Six Weeks After Open Cholecystectomy: A European Cohort Study.ECHSS Group. European Collaborative Health Services Study Group. 1994.
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