TY JOUR TI Combined anemia caused by iron and vitamin B12 deficiency KW Combined anemia KW sideropenia KW B12 deficiency KW atrophic gastritis KW funicular myelosis KW and differential diagnosis of anemias. JO Clinical Medicine and Pharmacology AU Carev, N.N. PY 2026 IS 11 PB LLC Information and publishing center Innovations and investments