Exocrine pancreatic function tests.

MLA

Li, Y. Y., et al. “Exocrine Pancreatic Function Tests.” Journal of Clinical Gastroenterology, vol. 11, no. 4, Aug. 1989, pp. 376–78. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=cmedm&AN=2668398&authtype=sso&custid=ns315887.

APA

Li, Y. Y., Chiverton, S. G., & Hunt, R. H. (1989). Exocrine pancreatic function tests. Journal of Clinical Gastroenterology, 11(4), 376–378.

Chicago

Li, Y Y, S G Chiverton, and R H Hunt. 1989. “Exocrine Pancreatic Function Tests.” Journal of Clinical Gastroenterology 11 (4): 376–78. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=cmedm&AN=2668398&authtype=sso&custid=ns315887.