- Genetic mapping of 20 novel expressed sequence tags from midgestation mouse embryos suggests chromosomal clustering. Tchernev, V.T., Barbosa, M.D., Detter, J.C., Patel, T.D., Achey, K., Wakeland, E.K., Gueorguieva, R.V., Yang, M.C., Gossler, A., Kingsmore, S.F. Genomics (1997)