Penkova, N., Atanassova, P., Koeva, I., Trichkova, V. Serotonin Producing Cells in the Small Intestine of Newborn Rats - Light Microscopic and Immunohistochemical Study. София: 2010 83-87,.
Penkova, N., Atanassova, P., Koeva, I., Trichkova, V. Serotonin Producing Cells in the Small Intestine of Newborn Rats - Light Microscopic and Immunohistochemical Study. София: 2010 83-87,.
Penkova, N., Atanassova, P., Koeva, I., Trichkova, V. (2010) Serotonin Producing Cells in the Small Intestine of Newborn Rats - Light Microscopic and Immunohistochemical Study, София: 83-87,.
Penkova, N., Atanassova, P., Koeva, I., & Trichkova, V. (2010). Serotonin Producing Cells in the Small Intestine of Newborn Rats - Light Microscopic and Immunohistochemical Study. София: 83-87.
Penkova N, Atanassova P, Koeva I, Trichkova V. Serotonin Producing Cells in the Small Intestine of Newborn Rats - Light Microscopic and Immunohistochemical Study. София: 2010. p. 83-87.