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Geographical Origin Difference of Elemental "Fingerprints" in Chinese Mitten Crab Eriocheir sinensis from the Same/Different Water Systems Determination of the Geographic Origin of Rice by PCA-LDA Based on the Stable Isotopes and Multi-elements Concentrations DETERMINATION OF THE GEOGRAPHICAL ORIGIN OF TEA BY FT-IR SPECTROSCOPY ANALYSIS AND PATTERN RECOGNITION TECHNIQUE Geographical Origin and Evolution of Masson Pine Studies on the Fatty Acid Composition of Soybean Germplasm Resources in Northeast China DETERMINING GEOGRAPHICAL ORIGIN OF CEREALS