Мощный тест ни о чем.

Here is a quick and easy way to test the capacity of your lungs. Hold your breath and watch the red ball spin while you count the number of spins. The more number of spins you can hold your breath, better is the health of your lungs.#Lungs #LungTest #ExpertDoctor #Covid19 pic.twitter.com/i9x9zySljB

— Zydus Hospitals (@ZydusHospitals) May 14, 2021

Лучшая больница Ахмедабада...