2HWR:
reference: Structural basis for the structure-activity relationships of peroxisome proliferator-activated receptor agonists., Mahindroo N, Peng YH, Lin CH, Tan UK, Prakash E, Lien TW, Lu IL, Lee HJ, Hsu JT, Chen X, Liao CC, Lyu PC, Chao YS, Wu SY, Hsieh HP, J Med Chem. 2006 Oct 19;49(21):6421-4. PMID: 17034149

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