[On various features of the biology of the agents of tick-borne rickettsioses].
D000818:Animals; D001854:Bone Marrow Cells; D046508:Culture Techniques; D006168:Guinea Pigs; D012281:Rickettsia / Q000502:physiology*
O nekotorykh osobennostiakh biologii vozbuditeleĭ kleshchevykh rikketsiozov.