Autor: David Q. -H Wang

Dr. David Q.-H. Wang is a Professor of Internal Medicine at Saint Louis University School of Medicine in St. Louis, MO. In 1992-1996, as a postdoctoral research fellow, he studied the pathophysiology …

Many cities of the developing countries have, for a long time, been burdened with the sprawling squatter settlements constituted of insanitary spaces in ad-hoc structures, overcrowded and inappropria …