Leigh is using "evidence based" decision making.
Clinical decision making (CDM) is a functioning, intentional, and unconstrained process that happens inside the clinician's brain amid a cooperation with a patient. Before, CDM was thought to depend only on the clinical experience of the professional or the specialist's connections with associates and specialists in the field.
Evidence Based Decision-Making is a procedure for settling on choices about a program, practice, or arrangement that is grounded in the best accessible research proof and educated by experiential proof from the field and important contextual evidence.
