RT Journal Article SR Electronic T1 Utilisation appropriƩe des antihistaminiques JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E992 OP E993 DO 10.1503/cmaj.201959-f VO 193 IS 25 A1 Derek K. Chu A1 Paul Oykhman A1 Gordon L. Sussman YR 2021 UL http://www.cmaj.ca/content/193/25/E992.abstract