Utility of reticulocyte hemoglobin as a new predictor of anemia in intensive care unit patients - de la Cruz-Garcinuno, Manuel; Juarez-Vela, Raul; Lasa-Berasain, Pablo; de Vinaspre-Hernandez, Regina Ruiz; Czapla, Michal; Garcia-Munoz, Lourdes; Polo-Andrade, Enrique; Sarmiento, Carmen; Rodero-Martinez, Javier; Alonso-Arias, Mirian; Lopez-Tornero, Saray; Quintana-Diaz, Manuel (FRONTIERS IN MEDICINE, 2025)