Rapid prenatal diagnosis of chromosomal aneuploidies by fluorescense in situ hybridization: clinical experience with 4,500 specimens. - Ward ,B.E.; Gersen ,S.L.; Carelli ,M.P.; McGuire ,N.M.; Dackowski ,W.R.; Weinstein ,M.; Sandlin ,C.; Warren ,R.; Klinger ,K.W. (Am J Hum Genet, 1993)