RT Journal Article SR Electronic T1 Two children with tremor JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 512 OP 517 DO 10.1503/cmaj.120496 VO 187 IS 7 A1 Helena Liu A1 Tamara Pringsheim A1 Graham C. Thompson YR 2015 UL http://www.cmaj.ca/content/187/7/512.abstract