This author has not been identified. Look up 'Margaret R. Stedman' in GoogleThis author has not been identified. Look up 'David R. Gagnon' in GoogleThis author has not been identified. Look up 'Robert A. Lew' in GoogleThis author has not been identified. Look up 'Sin-Ho Jung' in GoogleThis author has not been identified. Look up 'Elena Losina' in GoogleThis author has not been identified. Look up 'M. Alan Brookhart' in Google