1. Survival of infants with spina biflda - Atlanta 1972-1979;Adams;Am. J. Dis. Child.,1985
2. A benefit-cost analysis of amniocentesis;Andreano;Soc. Biol.,1983
3. Gastroschisis og omphalocele i Danmark;Bugge;Ugeskr. Laeger,1983
4. Cost-Benefit Analysis of Maternal Serum AFP in Denmark 1988 Statens Seruminstitut (obtainable from the author)