>>/113480/
> plastic bronchitis
Mayo Clininc report on a patient with plastic bronchitis dated 1991 it references cases going back to the fifties and sixties and earlier.
 >>/113481/
> When was "plastic bronchitis" FIRST diagnosed?

https://www.mayoclinicproceedings.org/article/S0025-6196(12)61013-1/fulltext