Was Grand Duchy of Lithuania a Federation? by Zenonas Norkus

“…Tilly), the author argues that GDL was an empire because relations between Lithuania in the strict sense (including also some Russian lands annexed by the early XV century) and Polotsk, Vitebsk, Smolensk, Volynia, Kiev, Samogitia, etc. were those of subordination of the periphery to the imperial metropole. …”
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Place of injuries of elbow joint in the structure of primary permanent disability among Ukrainian population by L.Y.  Naumenko, T.O. Zub, A.O. Mametyev

“…Structure according to disability groups showed the next distribution: 90.3% – the 3rd group, 9.2% – the 2nd group and 0.5% – the 1st group. …”
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