RT Journal Article SR Electronic T1 Abolishing the law of gravity JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 598 OP 598 DO 10.1503/cmaj.1070180 VO 178 IS 5 A1 Giuseppe Lippi MD YR 2008 UL http://www.cmaj.ca/content/178/5/598.1.abstract