PeerJ Author 135 Points Contributions by role Author 135 Contributions by subject area Agricultural Science Plant Science Metabolic Sciences Forestry Hongyan Du PeerJ Author Summary Agricultural Science PeerJ Contributions Articles 1 August 21, 2020 Chemotype classification and biomarker screening of male Eucommia ulmoides Oliv. flower core collections using UPLC-QTOF/MS-based non-targeted metabolomics Panfeng Liu, Lu Wang, Qingxin Du, Hongyan Du https://doi.org/10.7717/peerj.9786 PubMed 32884862