Final answer:
The Office of Secretary of Defense/Health Affairs-directed DoD materiel standardization efforts must be supported by various stakeholders, including the military healthcare system and defense medical and logistical organizations.
Step-by-step explanation:
In the Office of Secretary of Defense/Health Affairs-directed DoD materiel standardization efforts, clinical and logistical participation should be supported by various stakeholders.
One of the key stakeholders who must support these efforts is the military healthcare system, which includes healthcare providers, administrators, and support staff.
Additionally, other organizations and individuals involved in defense medical and logistical operations, such as the Defense Health Agency, military medical research institutions, and procurement specialists, should also support these standardization efforts.