(Portland, OR) -- Nurses at two more Providence Health Hospitals are taking strike votes. Providence says progress is being made in contract negotiations at Willamette Falls Hospital, and their next bargaining session is May 25th. A federal mediator is helping to find consensus. At Providence Milwaukie, they proposed increases of nearly seven-percent. Their next negotiation is May 26th. The Oregon Nurses Association says they want contracts to raise nurse staffing standards and address a staffing crisis.