Contents

Flow Cytometric Detection of Immunophenotypically Normal Plasma Cells in Multiple Myeloma Patients Provides Clinically Important Information 59 Valdas Pečeliūnas, Aušra Janiulionienė, Rėda Matuzevičienė, Laimonas Griškevičius

The Significance of Blast Multidrug Resistance Detection by Flow Cytometry in Diagnostics of Acute Leukemia 65 Miglė Janeliūnienė, Rėda Matuzevičienė, Zita Aušrelė Kučinskienė

Y Chromosome DNA Analysis: Variation Among Ethno-Linguistic Groups of Lithuania 75 Ingrida Uktverytė, Oleg Balanovsky, Elena Balanovska, Vaidutis Kučinskas

The Influence of Monitoring Somatosensory and Motor Evoked Potentials on the Complication Rate During CNS Surgery 80 Elvira Lisovskaja, Kristina Kairytė, Saulius Ročka

Patients’ Attitude to Taking and Interpretation of Laboratory Tests 86 Linas Pauliukėnas, Daiva Andriukaitienė

Menarcheal Age and Menstruation Peculiarities of Vilnius City Girls (A Pilot Study Based on 2010 Data) 95 Janina Tutkuvienė, Ernesta Jančauskaitė, Vilija Guntaitė

Xenograft Rejection: Immunology and Recently Developed Methods of Solution 103 Žilvinas Chomanskis, Vaiva Hendrixson