"For example, WOB module 50 may be communicatively coupled to one or more sensors 40 (e.g., sensors 40 located at or proximate to an artificial airway (e.g., an endotracheal tube or other device), a Wye connector, or breathing circuit 30) such that WOB module 50 may receive data directly from such sensors 40, e.g., as indicated by dashed line 56." . . . .