by Goddard, W B
Published in American journal of obstetrics and gynecology (15.04.1971)

by Naef, 3rd, R W, Morrison, J C, Washburne, J F, McLaughlin, B N, Perry, Jr, K G, Roberts, W E
Published in Obstetrics and gynecology (New York. 1953) (01.09.1994)

by Herbst, A, Ingemarsson, I
Published in British journal of obstetrics and gynaecology (01.08.1994)

by Salvesen, D R, Freeman, J, Brudenell, J M, Nicolaides, K H
Published in British journal of obstetrics and gynaecology (01.03.1993)

by Friedman, R L, Friedman, I H
Published in Surgical endoscopy (01.08.1995)

by Strong, Jr, T H, Jordan, D L, Marden, D W
Published in American journal of obstetrics and gynecology (01.11.1992)

by Johnstone, F D, Prescott, R, Hoskins, P, Greer, I A, McGlew, T, Compton, M
Published in British journal of obstetrics and gynaecology (01.08.1993)

by Schram, Catharina M.H., Gardosi, Jason O.
Published in American journal of obstetrics and gynecology (01.04.1994)

by Akay, Metin
Year of Publication 2007

by Skoczylas, Michał, Laudański, Tadeusz
Published in Ginekologia polska (01.05.2002)

by Laudy, J. A. M., Ursem, N. T. C., Mulder, P. G. H., Wladimiroff, J. W.
Published in Ultrasound in obstetrics & gynecology (01.04.1999)

by Chang, A., Sahota, D.S., Reed, N.N., James, D.K., Mohajer, M.P.
Published in European journal of obstetrics & gynecology and reproductive biology (01.04.1995)

by Nijhuis, J.G, van de Pas, M, Jongsma, H.W
Published in Early human development (01.09.1998)

by Skoczylas, Michał, Laudański, Tadeusz
Published in Ginekologia polska (01.10.2003)

by Archibong, E.I
Published in International journal of gynecology and obstetrics (01.02.1999)

by Nyman, M, Arulkumaran, S, Hsu, T S, Ratnam, S S, Till, O, Westgren, M
Published in Obstetrics and gynecology (New York. 1953) (01.11.1991)

by Johnson, N, Johnson, V A, Bannister, J, Lilford, R J
Published in Journal of perinatal medicine (1991)

by Wakai, Ronald T., Wang, Minghong, Pedron, Stephen L., Reid, Deborah L., Martin, C.B.
Published in Early human development (01.11.1993)

by MURO, MASAMI, SHONO, HIDEAKI, ITO, YUJI, SUGIMORI, HAJIME
Published in Psychiatry and clinical neurosciences (01.04.1998)

by Snijders, R, Hyett, J
Published in Current opinion in obstetrics & gynecology (01.04.1997)