Chief Master Sergeant (last name) A chief master sergeant in the U.S. Air Force is the highest senior non-commissioned officer rank and directly above senior master sergeant. It is equivalent to the rank of sergeant major in the Army, master gunnery sergeant/sergeant major in the Marines, and master chief petty officer in the Navy/Coast Guard.
Pivotal Response Treatment (PRT) is a naturalistic intervention based on the principles and practices of applied behavior analysis (ABA) and developmental approaches.
WhAt is photoDynAMic therApy (pDt)? Photodynamic therapy is an outpatient procedure involving the use of a special light-activated drug. The inactive form of the drug is usually injected into a vein in the arm, where it travels to and accumulates in abnormal blood vessels under the center of the macula.