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. Author manuscript; available in PMC: 2019 Mar 18.
Published in final edited form as: Am J Ind Med. 2018 May 6;61(7):621–624. doi: 10.1002/ajim.22856

FIGURE 1.

FIGURE 1

Frequency of lung transplant in patients with a primary diagnosis at time of transplant of coal workers’ pneumoconiosis or pneumoconiosis unspecified, defined as a patient listed with a free-text diagnosis of pneumoconiosis without additional specification (top frame); frequency of lung transplant waitlist addition for patients with a diagnosis of coal workers’ pneumoconiosis or pneumoconiosis unspecified, as specified at time of waitlist addition (bottom frame), United States, January 1994-June 2017*