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1 Smoking Habit of Coal Workers' Pneumoconiosis Patients: Their Relationship to the Findings of Chest Radiographs
Jeong Pyo Hong, Ho Keun Chung
Korean J Occup Environ Med.1990;2(1):23-33.   Published online 2019 February 1     DOI: http://dx.doi.org/10.35371/kjoem.1990.2.1.23
   
2 Smoking cessation services provided by the National Health Insurance Service
Yu-Jin Paek, Jae-Kyung Choi, Eon-Sook Lee, Min-Woo Jo
J Korean Med Assoc.2018;61(3):157-162.   Published online 2018 March 16     DOI: http://dx.doi.org/10.5124/jkma.2018.61.3.157
      

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