Answer: MDA

AnswerCrossword Clue
MDALabor Day telethon org.
MDAJerry Lewis hosts its telethons annually: Abbr.
MDA... Show of Strength (Labor Day weekend broadcast)
MDAOrg. that benefits Jerry's Kids
MDADystrophy org.
MDALabor Day telethon grp.
MDAErstwhile telethon org.
MDAJerry Lewis telethon org., for years