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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Some E.R. workers:

HOPPINGMD: E.R. worker who sprained an ankle?
MDS: Some E.R. workers
LPN: E.R. worker
RNS: E.R. or O.R. workers
RNS: Some E.R. and O.R. workers