Ebner R, Chen RH, Lawler S, Zioncheck T, Derynck R (November 1993). "Determination of type I receptor specificity by the type II receptors for TGF-beta or activin". Science. 262 (5135): 900–2. Bibcode:1993Sci...262..900E. doi:10.1126/science.8235612. PMID8235612.
Ebner R, Chen RH, Lawler S, Zioncheck T, Derynck R (November 1993). "Determination of type I receptor specificity by the type II receptors for TGF-beta or activin". Science. 262 (5135): 900–2. Bibcode:1993Sci...262..900E. doi:10.1126/science.8235612. PMID8235612.
Ebner R, Chen RH, Lawler S, Zioncheck T, Derynck R (November 1993). "Determination of type I receptor specificity by the type II receptors for TGF-beta or activin". Science. 262 (5135): 900–2. Bibcode:1993Sci...262..900E. doi:10.1126/science.8235612. PMID8235612.