PT  - JOURNAL ARTICLE
AU  - Tolu Oloruntoba
TI  - A quartet of intruders
AID  - 10.1503/cmaj.190802
DP  - 2020 Jan 13
TA  - Canadian Medical Association Journal
PG  - E42--E43
VI  - 192
IP  - 2
4099  - http://www.cmaj.ca/content/192/2/E42.short
4100  - http://www.cmaj.ca/content/192/2/E42.full
SO  - CMAJ2020 Jan 13; 192