[Studies on ECHO-9 Virus. I. Serological variation of ECHO-9 (Hill) virus under the influence of temperature].
D000818:Animals; D046508:Culture Techniques; D029822:Enterovirus B, Human / Q000276:immunology*; D013696:Temperature; D014776:Virus Cultivation
Badania wirusa Echo 9. I. Serologiczna zmienność wirusa Echo 9. (Hill) pod wpływem temperatury.