TY - BOOK AU - Haynes, R. Brian AU - Sackett, David L. AU - Guyatt, Gordon AU - Tugwell, Peter TI - Clinical epidemiology : how to do clinical practice research ET - 3rd ed PB - Lippincott Williams & Wilkins PY - 2006 EP - xv, 496 p. UR - https://ci.nii.ac.jp/ncid/BA73731485 SN - 0781745241 ER -