by Cronjé, Hendrik S., Niemand, Illse, Bam, Roosmarie H., Woodruff, J.Donald
Published in American journal of obstetrics and gynecology (01.02.1999)

by Cronjé, H S, Niemand, I, Bam, R H, Woodruff, J D
Published in Obstetrical & gynecological survey (01.04.1998)

by Boomgaard, Jantien J., Dekker, Karin S., van Rensburg, Elsabet, van den Berg, Corlia, Niemand, Illse, Bam, Roosmarie H., Cronjé, Hendrik S.
Published in American journal of obstetrics and gynecology (01.10.1999)

by Cronjé, H S, Divall, P, Bam, R H, Cooreman, B F, Niemand, I
Published in Acta cytologica (01.07.1997)