1. World Health Organization internet site: Advice on the use of masks in the context of COVID‐19.https://www.who.int/publications/i/item/advice‐on‐the‐use‐of‐masks‐in‐the‐community‐during‐home‐care‐and‐in‐healthcare‐settings‐in‐the‐context‐of‐the‐novel‐coronavirus‐(2019‐ncov)‐outbreak visited on September 11th 2020.
2. World Health Organization internet site COVID‐19 Emergency Committee highlights need for response efforts over long term news release 1 August 2020.https://www.who.int/news‐room/detail/01‐08‐2020‐covid‐19‐emergency‐committee‐highlights‐need‐for‐response‐efforts‐over‐long‐term visited on September 11th 2020
3. Effects of wearing N95 and surgical facemasks on heart rate, thermal stress and subjective sensations
4. Impact of the COVID‐19 pandemic on sports and exercise;Wong AY‐Y;Asia Pac J Sports Med Arthrosc Rehabil Technol,2002
5. Heat balance when wearing protective clothing