APA   Click to copy
Ruan, D., Thomas, D. H., & Low, D. A. (2015). Objective function to obtain multiple representative waveforms for a novel helical CT scan protocol. Medical Physics, 42, 1164–1169.

Chicago/Turabian   Click to copy
Ruan, Dan, D H Thomas, and Daniel A Low. “Objective Function to Obtain Multiple Representative Waveforms for a Novel Helical CT Scan Protocol.” Medical Physics 42 (2015): 1164–1169.

MLA   Click to copy
Ruan, Dan, et al. “Objective Function to Obtain Multiple Representative Waveforms for a Novel Helical CT Scan Protocol.” Medical Physics, vol. 42, American Association of Physicists in Medicine, 2015, pp. 1164–69.

@article{ruan2015a,
  title = {Objective function to obtain multiple representative waveforms for a novel helical CT scan protocol},
  year = {2015},
  journal = {Medical Physics},
  pages = {1164--1169},
  publisher = {American Association of Physicists in Medicine},
  volume = {42},
  author = {Ruan, Dan and Thomas, D H and Low, Daniel A}
}