Which drug is a less expensive, yet more potent, version of cocaine that gained popularity in inner-city, low-income neighborhoods in the 1980s and 1990s?

A patient with thickened and discolored nails was diagnosed with onychomycosis. A scraping of the nail was sent for culture. Microscopic analysis of the mold colony growth revealed the following morphology. The most likely identity of this organism is: pic22.jpg 

Which gangs pursue illegal activities in more than one country and are especially prominent on both sides of the boundary between Mexico and the United States?

Recent research by the National Gang Center indicated that up to ______ of gang members are female.

What are nonchromogens?

What is the arrow point to in the picture? pic4.jpg 

A patient who wears long-term contact lenses comes to her physician after noting a small spot on her cornea. Collection of the lesion for culture produced a fast-growing mold with a slight pink color on the surface. Microscopic review showed the following organism. This organism is most likely: pic43.jpg  

How has the treatment of mycobacterial disease changed in light of the multidrug-resistant strains of mycobacteria that are being isolated? (zoom ?)

What disease is caused by Trypanosoma cruzi?

How is a specimen for pinworm collected?