@article {627363,
	title = {Picoanalysis of Drugs in Biofluids with Quantitative Label-Free Surface Enhanced Raman Spectroscopy},
	journal = {Small },
	volume = {14},
	number = {1802392},
	year = {2018},
	pages = {1-11},
	url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/smll.201870227?af=R},
	author = {Turzhitsky V and Zhang L and Horowitz GL and Vitkin E and Khan U and Zakharov Y and Qiu L and Itzkan I and Perelman LT}
}