@article {Murphy2008,
	title = {Tear sample collection using cellulose acetate absorbent filters},
	journal = {Ophthalmic and Physiological Optics},
	volume = {28},
	year = {2008},
	pages = {577-583},
	author = {Esmaeelpour, M. and Cai, J. and Watts, P. and Boulton, M. and Murphy, P.J.}
}
