• UCSF Pathology site: http://labmed.ucsf.edu/labmanual/ebm/lr-index.html
• theNNT.com: http://www.thennt.com/home-lr/
• JAMA Rational Clinical Exam: https://jamaevidence.mhmedical.com/book.aspx?bookId=845
• UCSF Pathology site: http://labmed.ucsf.edu/labmanual/ebm/lr-index.html
• theNNT.com: http://www.thennt.com/home-lr/
• JAMA Rational Clinical Exam: https://jamaevidence.mhmedical.com/book.aspx?bookId=845