**Gray, SD. Cellular physiology of the vocal folds. The Otolaryngologic Clinics of North America. V.30. No. 4. pp 679-98. Aug 2000. The vocal folds are made up of three major layers from deep to superficial: 1.
As of 1 January 2017, the population of Russian Federation was estimated to be 146,389,999 people. This is an increase of 0.04 % (59,995 people) compared to population of 146,330,004 the year before. In 2016 the natural increase was negative, as the number of deaths exceeded the number of live births by 168,280.
According to the US Census Bureau's population clock, the estimated 2017 United States population (December 2017) is nearly 326.5 million. This is a bit higher than the 324.46 million estimated by the United Nations.