bone-marrow cultures. Proc. Nat. Acad. Sci. USA 70:1739- 
1743, 1973. 
12. Nienhuis, A.W. , Canfield, P.H. and Anderson, W.F.: Human bone 
marrow hemoglobin messenger RNA: Isolation and translation 
in homozygous and heterozygous beta- thalassemia. 
J. Clin. Invest. 52:1735-1745, 1973. 
13. Nienhuis, A.W. , Falvey, A.K. and Anderson, W.F.: 
Preparation of globin messenger RNA. K. Moldave and L. 
Grossman (eds): Methods Enzymology 30:621-630, 1974. 
14. Nienhuis, A.W. and Anderson W.F.: The molecular defect in 
thalassemia. Clinics in Haematology 3:437-466, 1974. 
15. Nienhuis, A.W. and Bunn. H.F. : Hemoglobin switching in 
sheep and goats: Occurrence of hemoglobins A and C in 
the same red cell. Science 185:946-948, 1974. 
16. Anderson, W.F., Steggles, A., Wilson, G. , Kantor, J., Velez, 
R. , Picciano, D., Falvey, A., and Nienhuis, A.: Cell-free 
transcription of human bone marrow chromatin. Ann . N . Y . 
Acad. Sci. 241:262-273, 1974. 
17. Nienhuis, A.W. , Elson, N.A. ; BarVe> J.E., and Anderson, 
W.F.: Hemoglolbin switching in sheep and goats: Aspects of 
the molecular mechanism. Ann. N.Y. Acad. Sci. 241:566-581, 
1974. 
18. Velez, R. , Kantor, J.A., Picciano, D.J., Anderson, W.F., 
and Nienhuis, A.W. : Alpha and beta globin complementary DNAs 
of human rabbits: specificity of hybridization. J. Biol. 
Chem. 250:3193-3198, 1975. 
19. Barker, J.E., Anderson, W.F., and Nienhuis, A.W. : 
Hemoglobin switching in sheep and goats: V. Effect of 
erythropoietin concentration on in vitro erythroid colony 
growth and globin synthesis. J. Cell Biol. 64:515-527, 
1975. 
20. Deisseroth, A., Burk, R. , Picciano, D. , Minna, J. 
Anderson, W.F., and Nienhuis, A.: Expression of globin 
genes in somatic cell hybrids: Dimethyl sulfoxide induced 
amplication of mouse hemoglobin synthesis in human 
marrow-mouse erythroleukemia hybrid cells. Proc. Nat. Acad. 
Sci. 72:1102-1106, 1975. 
21. Anderson, W.F., Barker, J.E., Elson, N.A. , Merrick, W.C., 
Steggles, A.W. , Wilson, G.N., Kantor, J.A. and Nienhuis, 
A.W. : Activation and inactivation of gene determining 
hemoglobin types. J. Cell Physiol . 85:477-494, 1975. 
22. Deisseroth, A., Barker, J., Anderson, W.F., and Nienhuis, 
A.W.: Hemoelobin synthesis in somatic cell hybrids: 
1456] Recombinant DNA Research, Volume 12 
