Two New Jersey health systems — Saint Peter's Healthcare System and RWJBarnabas Health — received approval from state regulators to merge. 

Dartmouth Health and Manchester, N.H.-based GraniteOne Health are canceling their proposed merger after the state Attorney General's Office said the move would violate the New Hampshire constitution, according to VTDigger.

New Hampshire Attorney General John Formella released a report May 13 from the Charitable Trusts Unit objecting to the proposed merger between Lebanon, N.H.-based Dartmouth Health and Manchester, N.H.-based GraniteOne Health.

Louisville, Ky.-based ScionHealth has entered into a definitive agreement to acquire Dallas-based Cornerstone Healthcare Group, an organization with 16 locations of specialty hospitals, senior living facilities and a behavioral health facility.

Cape Girardeau, Mo.-based SoutheastHealth wants to partner with a bigger health system through a plan called "Project Forward Vision," KFVS 12 reported May 12.

Piedmont Urgent Care by Wellstreet has acquired urgent care management company SmartCare Medical Group, adding 10 locations.

With humble beginnings as an individual hospital, Charlotte, N.C.-based Atrium Health has since grown into a major player in the healthcare field, most recently announcing plans to merge with Midwest health system Advocate Aurora Health on May 11.

Atrium Health and Advocate Aurora Health plan to merge into a 67-hospital system with upward of $27 billion in revenue and nearly 158,000 employees combined. 

Huntingdon Valley, Pa.-based Redeemer Health is seeking a strategic partnership for its 236-bed hospital in Meadowbrook, Pa., and physician practices, The Philadelphia Inquirer reported May 10.

North Carolina city officials took aim at what they considered a lack of communication from Nashville, Tenn.-based HCA Healthcare as it worked to close its acquisition of Asheville, N.C.-based Mission Health, according to the Citizen Times.

Yakima (Wash.) Valley Memorial signed a letter of intent to explore joining Tacoma, Wash.-based MultiCare Health System. 

Massachusetts nurses' concerns about the closure of mental health and pediatric beds at Heywood Hospital were "intensified" by the May announcement that Worcester-based UMass Memorial Health and Heywood Healthcare are exploring an affiliation deal, the Massachusetts Nurses Association said May 6.

San Francisco-based Dignity Health and the San Joaquin County Board of Supervisors have settled on a management services agreement for San Joaquin General Hospital in French Camp, Calif.

Alton, Ill.-based OSF Saint Anthony's Health Center has formed a strategic affiliation with SLUCare Physician Group in St. Louis, in partnership with SSM Health, also in St. Louis.

Tucson, Ariz.-based TMC Health has started the due diligence process to acquire Santa Cruz Valley Regional Hospital in Green Valley, Ariz., a spokesperson for TMC Health confirmed to Becker's May 3.

An affiliation between Chapel Hill-based University of North Carolina Health and Boone, N.C.-based Appalachian Regional Healthcare System has been approved.

Worcester-based UMass Memorial Health has signed a nonbinding letter of intent with Gardner, Mass.-based Heywood Healthcare, a two-hospital system, to explore an affiliation deal.

Nine deals involving health systems and hospitals have been announced, finalized or called off since April 11.

Centennial, Colo.-based Centura Health completed the acquisition of St. Elizabeth Hospital and St. Catherine Hospital-Dodge City from Brentwood, Tenn.-based LifePoint Health, making Centura a 19-hospital system.

Nashville, Tenn.-based HCA Healthcare signed an agreement to acquire Richmond, Va.-based BetterMed, an urgent care practice with 12 locations, Tim McManus, president of HCA Healthcare Capital Division, confirmed to Becker's.