Human olfactory neurons respond to odor stimuli with an increase in cytoplasmic Ca2+.
Restrepo D, Okada Y, Teeter JH, Lowry LD, Cowart B, Brand JG. Human olfactory neurons respond to odor stimuli with an increase in cytoplasmic Ca2+. Biophys J. 1993 Jun; 64(6):1961-6.