Kang, Sungchan
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14

A spatial analysis of geographic variation and factors asso..:

Agnus M. Kim ; Sungchan Kang ; Jong Heon Park..
http://link.springer.com/article/10.1186/s12890-019-0798-6.  , 2019
 
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15

Geographic variation and factors associated with rates of k..:

Agnus M. Kim ; Sungchan Kang ; Jong Heon Park..
http://link.springer.com/article/10.1186/s12891-019-2766-y.  , 2019
 
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