The University of California at San Francisco has spent thirty years cultivating its collection of Japanese woodblock prints, and it has become an important part of the Library's East Asian Collection. The collection of 400 digitized prints concern Japanese health-related topics from the mid-19th century, and portray the gradual acceptance of Western medicine. Visitors can view the collection by theme or perform a search to find something more specific. The themes include "Contagious Diseases", which focuses on smallpox, measles and cholera, "Foreigners and Disease", which highlights the Japanese belief that foreigners carried diseases to Japan, and "Drug Advertisements". The "Drug Advertisements" are quite possibly the most beautiful drug ads in existence, and they feature elaborate images of drugs slaying disease, kabuki actors promoting a show sponsored by a children's medicine, Kindoru powder, and a detailed rendering of the interior of a drugstore, printed on a fan that was given out as a promotional item to advertise the business.