Metropolitan Statistical Areas
Medical Savings Accounts
Master Services Agreements
Microwave Signature Acquisition System
MTSAT Satellite-based Augmentation Sys…
multiple shadow address space
Mandatory Supervisory Actions
Memorial Symptom Assessment Scale
Mesocell Study Areas
Military Simulation Assessment System
Mobile Service Areas
Multiple sequence alignments
Multi-Strike Avoidance System
muscle spindle afferents
mutagen sensitivity assays
myositis specific autoantibodies