1. Association between congenital heart malformation and chromosomal variations;Book, J.A.; Santesson, B.; Zetterqvist, P.;Acta paediat. (Uppsala),1961
2. Chromosome studies in spontaneous abortions;Carr, D.H.,1965
3. Analysis of data from abortuses which failed to grow in culture;ibid,1966
4. Clinical evaluation of human amnion tissue culture;Jonas, E.G.; Caunt, A.E.;Brit. med. J,1965
5. Sex chromatin in polyploid nuclei of human amnion epithelium;Klinger, H.P.; Schwarzacher, H.G.;Nature (Lond.),1958