Hendrik Wolff
Posts tagged with Hendrik Wolff
Research
July 18, 2014
How Viagra changed the lifestyle of elderly men
The introduction of Viagra in 1998 changed the world of men suffering from erectile dysfunction. Up until then, there were […]
Research
June 2, 2014
Low-emission-zones reduce fine dust pollution in German cities
Low-emission-zones (LEZ) is Europe’s most aggressive recent air pollution regulation: only vehicles that emit low levels of air pollutants are […]