Correction to: Microfluidic resonators with two parallel channels for independent sample loading and effective density tuning (Micro and Nano Systems Letters, (2020), 8, 1, (16), 10.1186/s40486-020-00119-8)

After the publication of our article [1], we realized that it did not include the important reference [2] that reported our earlier work on device fabrication and experimental setup. We apologize to readers for this omission. Author details 1 Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak‑ro, Yuseong‑gu, Daejeon 34141, Republic of Korea. 2 Center for Extreme Thermal Physics and Manufacturing, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea. 3 Fourien, Edmonton T6B2N2, Canada. 4 Department of Chemical and Biological Engineering, University at Buffalo, New York 14260‑4200, USA.