298,995 PROGRAM Program and abstracts volume, 40th Annual Meeting the American Society of Human Regency Hotel Baltimore, Maryland November 11-15, 1989 / ASHG Program Committee Judith G. Hall, chair. - [Chicago : University Press, 1989]. - 59, [1], 373, [15] s. ; 28 cm (The American Journal of Human Genetics ; vol. 45, nr 4, suppl.)