was also cited for practices that risked contaminating surgical tools during procedures for probing a ferret's brain with an electrode. The university's ferret research was shut down for a month in 2019 after inspectors found three violations. These violations bring the number of serious violations at the university's animal lab to nine since 2014. Campuses The main campus, located on Marquam Hill (colloquially known as "Pill Hill") in the southwest neighborhood of Homestead, is home to the university's medical school as well as two associated hospitals. The Oregon Health & Science University Hospital is a Level I trauma center and general hospital; Doernbecher Children's Hospital is a children's hospital which specializes in pediatric medicine and care of children with long-term illness. The university maintains a number of outpatient primary care facilities including the Physician's Pavilion at the Marquam Hill campus as well as throughout the Portland metropolitan area. A third hospital, the Portland Veterans Affairs Medical Center is located next to the main OHSU campus; this hospital is run by the United States Department of Veterans Affairs and is outside the auspices of OHSU. A pedestrian skybridge connecting OHSU Hospital and the VA Medical Center was constructed in 1992. Additionally, the Portland Shriners Hospital for Children is located on the OHSU campus. The university also had a campus in Hillsboro, at the site of the former OGI. This campus specialized in graduate-level science and engineering education and is located in the heart of Oregon's Silicon Forest. Since 1998, the university has controlled the Oregon National Primate Research Center, located adjacent to OGI in Hillsboro.With the Marquam Hill campus running out of room for expansion, beginning in 2003 OHSU announced plans to expand into the South Waterfront District, formerly known as the North Macadam District. The expansion area is along the Willamette River in the South Portland neighborhood to the east of Marquam Hill and south of the city center. The Center for Health & Healing earned LEED Platinum certification in February 2007, becoming the largest health care center in the U.S. to achieve that status. As part of the continued expansion of the South Waterfront, on June 26, 2014, OHSU opened the Collaborative Life Sciences Building (CLSB). The building cost $295 million to construct, and houses OHSU School of Dentistry and Dental Clinics, Portland State University classes and Oregon State University's Doctor of Pharmacy program. In April, 2018, CLSB was