542,117 POBOR GRGUR A study on the specificity, growth requirements and function of T helper cells /Takademisk avhandling^ / Grgur Pobor ; Umea Universitet. — Umea : AB Norrlandska Reproduktionsanstalten, 1984. — fa], 66 s., /prac 6/ : wykr. ; 21 cm + wkh /2/ s. (Umea University Medical Dissertation ; n. ser. nr 125)