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Dept. of Agriculture @USDA
Dr. Evangelina Villegas was a cereal chemist & researcher. She collaborated with plant breeder Dr. Surinder Vasal to develop a variety of maize with increased levels of lysine & tryptophan which improved the nutritional & health needs of many people worldwide. #WomensHistoryMonth https://t.co/0b6BKiTcBG — PolitiTweet.org