A Multicenter, Open-label, Phase 1b Study to Assess the Pharmacokinetics, Safety, and Tolerability of Sulbactam-Durlobactam in Hospitalized Pediatric Patients From Birth to <18 Years Who Are Receiving Systemic Antibiotic Therapy for Suspected or Confirmed Acinetobacter Baumannii-calcoaceticus Complex Infection | Arctuva