Minn. Stat. § 179A.135

Any charitable hospital as defined in section 179.35, subdivision 2 , any hospital employee as defined in section 179.35, subdivision 3 , any labor organization as defined in section 179.01, subdivision 6 , or any other person or organization connected with a charitable hospital, who is aggrieved by an unfair labor practice as defined in sections 179.11 and 179.12 , may file an unfair labor practice charge with the Public Employment Relations Board that will be processed in accordance with the provisions of sections 179A.051 , 179A.052 , and 179A.13 .