Praditpastra C. Restrictions on Morphine Administration: A Comparative Study on Thailand, Germany, the United Kingdom, and the United States. J.PH.PL [Internet]. 2020 May 19 [cited 2024 May 5];6(2):331-43. Available from: https://so05.tci-thaijo.org/index.php/journal_law/article/view/238447