More than 125 nurses held a pro-union rally outside Memorial Medical Center in Modesto on Tuesday. The California Nurses Association/National Nurses United said about 900 registered nurses at Memorial are eligible to vote on union membership in an election set for Thursday and Friday. Employees with other unionized hospitals, including Kaiser Modesto Medical Center, participated in the rally outside the hospital at Coffee Road and Briggsmore Avenue. In an appeal for public support, nurses said they can collectively bargain for patient-care protections. Union opponents – also rallying Tuesday – have said nurses who work for Memorial are well paid and respected by management. A vote in favor of the union would mean that nursing staff at all three full-service hospitals in Modesto would be represented by the California Nurses Association. The National Labor Relations Board will supervise the voting.