TY - BOOK TI - Principles and practice of sleep medicine / 6th ed AU - Kryger, Meir H. AU - Roth, T. (Thomas), 1932-. AU - Dement, William C., 1928-. SN - 9780323242882 (hardcover : alk. paper) PB - Elsevier PP - Philadelphia, PA : Elsevier, 2017. PY - 2017 UR - https://library.korea.ac.kr/detail/?cid=CAT000045878580&ctype=m