Comparison of antagonist activity of spantide family at human neurokinin receptors measured by aequorin luminescence-based functional calcium assay4401, Janecka, A.E., Poels J, Fichna J., Studzian K., and J. Broeck Vanden , Regul.Pept., 0/11/2005, Volume 131, Issue 1-3, Number 28, p.23 - 28, (2005)