Trends in polypharmacy over 12 years and changes in its social gradients in South Korea

• Yeon-Hee Baek,

  Roles Conceptualization, Investigation, Methodology, Writing – original draft

  Affiliation School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, South Korea

  http://orcid.org/0000-0001-9597-6310

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• Ju-Young Shin

  Roles Conceptualization, Methodology, Writing – original draft

  * E-mail: shin.jy@skku.edu

  Affiliation School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, South Korea

  http://orcid.org/0000-0002-2791-1037

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