Similar to TCP/IP

ADaM - Analysis Dataset Model
ADAMHA - Alcohol, Drug Abuse, and Mental Health Administration now SAMHSA
ADCOM - advisory committee
ADE - Adverse Drug Event
ADE/ADER - Adverse Drug Experience/Adverse Drug Experience Report
ADEC - Australian Drug Evaluation Committee
AdEERS - Adverse Event Expidited Reporting System NCI

View all in FDA