Review of Scientific Instruments (2015) - Comment
pubmed: 25725821  doi: 10.1063/1.4907401  issn: 1089-7623  issn: 0034-6748 

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Ruwan Senaratne, Shankari V. Rajagopal, Zachary A. Geiger, Kurt M. Fujiwara, Vyacheslav Lebedev, David M. Weld