Sim, Yvonne: Onset of Expression of Choline Acetyltransferase in the Sonic Motor Neurons of a Teleost Fish (Porichtys Notatus), 1993, Box: 7. Cornell University Office of Undergraduate Biology honors theses, 53-2-4432. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/919807 Accessed August 25, 2026.