Spirichev V.B., Levachev M.M., Rymarenko T.V., Iakushina L.M., Kharitonchik L.A., L'vovich N.A., Karagodina Z.V., Lupinovich V.L., Loranskaia T.I., Lebedeva R.P. (1992) The effect of administration of beta-carotene in an oil solution on its blood serum level and antioxidant status of patients with duodenal ulcer and erosive gastritis. Voprosy Meditsinskoi Khimii, 38(6), 44-47.

Spirichev V.B. et al. The effect of administration of beta-carotene in an oil solution on its blood serum level and antioxidant status of patients with duodenal ulcer and erosive gastritis // Voprosy Meditsinskoi Khimii. - 1992. - V. 38. -N 6. - P. 44-47.

Spirichev V.B. et al., "The effect of administration of beta-carotene in an oil solution on its blood serum level and antioxidant status of patients with duodenal ulcer and erosive gastritis." Voprosy Meditsinskoi Khimii 38.6 (1992): 44-47.

Spirichev, V. B., Levachev, M. M., Rymarenko, T. V., Iakushina, L. M., Kharitonchik, L. A., L'vovich, N. A., Karagodina, Z. V., Lupinovich, V. L., Loranskaia, T. I., Lebedeva, R. P. (1992). The effect of administration of beta-carotene in an oil solution on its blood serum level and antioxidant status of patients with duodenal ulcer and erosive gastritis. Voprosy Meditsinskoi Khimii, 38(6), 44-47.