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. 2021 Dec 21;12:746777. doi: 10.3389/fphar.2021.746777

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Copyright © 2021 Su, Su, Ko, Cheng, Huang and Chao.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Network diagram of core medicinal materials used in prescriptions for dysmenorrhea. Different colors represent different TCM properties. Circle sizes are proportional to the respective FC values, and line thicknesses are proportional to the respective frequencies of two-material combinations. AS, Angelica sinensis (Oliv.) Diels; CCT, Cinnamomum cassia (L.) J. Presl; HP, Hedysarum polybotrys Hand.-Mazz.; LiC, Ligusticum chuanxiong Hort; LyC, Lycium chinense Mill.; PL, Paeonia lactiflora Pall.; RG, Rehmannia glutinosa Libosch.