«Mast cells synthesize, store, and release nerve growth factor». Proceedings of the National Academy of Sciences of the United States of America. doi:10.1073/pnas.91.9.3739.
Quotations, K. Kris Hirst K. Kris Hirst is an archaeologist with 30 years of field experience She is the author of The Archaeologist's Book of. «Life of Rita Levi-Montalcini, Scientist and Nobel Prize Winner». ThoughtCo(en inglés). Consultado el 13 de agosto de 2019.