Βιβλιογραφική Τεκμηρίωση:
Why pollution is plummeting in some cities - but not others. Schiermeier Q.Nature. 2020 Apr;580(7803):313.
Nutrition for diabetic retinopathy: plummeting the inevitable threat of diabetic vision loss.Sharma Y, Saxena S, Mishra A, Saxena A, Natu SM.Eur J Nutr. 2017 Sep;56(6):2013-2027.
Forty years of economic growth and plummeting mortality: the mortality experience of the poorly educated in South Korea. Bahk J, Lynch JW, Khang YH.J Epidemiol Community Health. 2017 Mar;71(3):282-288.