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Kamerkar, Sushrut; LeBleu, Valerie S.; Sugimoto, Hikaru; Yang, Sujuan; Ruivo, Carolina F.; Melo, Sonia A.; Lee, J. Jack; Kalluri, Raghu . (2017). Exosomes facilitate therapeutic targeting of oncogenic KRAS in pancreatic cancer. Nature, (), –. doi:10.1038/nature22341 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research