Chang, L. (n.d.) 5 Emergencies: Do You Know What To Do? Retrieved January 30, 2019 from https://www.webmd.com/heart-disease/features/5-emergencies-do-you-know-what-to-do#4
Important phone numbers to know in Singapore (2018, April 26) Retrieved January 30, 2019 from https://expatliving.sg/important-phone-numbers-singapore/
Long waits at A&E despite more beds (2017, April 7) Retrieved January 30, 2019 from https://www.straitstimes.com/singapore/health/long-waits-at-aes-despite-more-beds
Steinbaum, S. (2018, March 18) Do You Know The Symptoms of a Heart Attack and Stroke? Retrieved January 30, 2019 from https://www.webmd.com/heart-disease/spot-a-stroke-heart-attack_
When To Call 911: Serious Symptoms You Should Never Ignore. Retrieved Jan 30, 2019 from https://www.webmd.com/first-aid/ss/slideshow-when-call-911
When Can I Call an SCDF Ambulance? (2015, July 21) Retrieved March 17, 2021, from https://www.gov.sg/article/when-can-i-call-an-scdf-ambulance
SCDF Emergency Medical Services. (n.d.) Retrieved March 17, 2021, from https://www.scdf.gov.sg/home/about-us/information/scdf-emergency-medical-services