MANILA, Philippines — The Philippine Health Insurance Corp. (PhilHealth) Region IV-A and Calamba Medical Center (CMC) have strengthened their partnership through a Memorandum of Agreement covering selected PhilHealth Z Benefit packages for qualified patients.The agreement covers Z Benefit packages for Coronary Artery Bypass Graft (CABG) surgery, peritoneal dialysis and hearing impairment services for children aged 0 to 17 years.PhilHealth Region…