Helicobacter pylori infection is associated with anemia, weight loss or both conditions among Bulgarian children / Lyudmila Boyanova, Petyo Hadzhiyski
  Bibliogr.: p. 241-242. - Abstr. eng. - DOI: https://doi.org/10.1556/030.2020.01158
  In: Acta Microbiologica et Immunologica Hungarica. - ISSN 1217-8950. - 2020. 67. évf. 4. sz., p. 239-242. : ill.