(Portland, OR) -- Nurses at Oregon Health & Science University Hospital are voting in favor of a potential strike as they fight for a new contract. The Oregon Nurses Association announced the results of the vote yesterday during a rally at Waterfront Park. Negotiations on a new contract started last December, and the contract expired in June. If a strike is called, ONA will give OHSU a ten-day notice to allow the hospital to stop admissions and transfer patients. Nurses and management continue to meet with a negotiator.