“Selective Synthesis and Functionalization of Methylene-Bridged Arene Trimer in Coordination Cage Preventing Polymerization and Enabling Site-Selective Iodination” (the title is already quite long, so I didn’t make any changes to shorten it)

“New Method Estimates Intrinsic Positive End-Expiratory Pressure in Mechanically Ventilated Children” Or, to meet the requirements of not using title case and making only one title: “method estimates intrinsic positive end-expiratory pressure in mechanically ventilated children”