Bauer B, Ehinger B
Experientia. 1976 Nov 15;32(11):1460-1. doi: 10.1007/BF01937434.
3H-serine does not label retinal neurons selectively when injected intraocularly in rabbits, as would have been expected if it had been converted to neutrotransmitter glycine. The reason is unknown, but one possibility is that the conversion was blocked during the conditions of the experiment.