[1] Ctr Postgrad Med Educ, Dept Reprod Hlth, Warsaw, Poland
[2] Polish Acad Sci, Inst Philosophy & Sociol, Warsaw, Poland
[3] Chang Gung Mem Hosp, Dept Obstet, Taipei, Taiwan
[4] Taiji Clin, Dept Fetal Med, Taipei, Taiwan
[5] Charles Univ Prague, Med Fac 1, Fetal Med Ctr, Prague, Czech Republic
[6] Gen Teaching Hosp, Prague, Czech Republic
[7] Karolinska Inst, Dept Clin Sci, Div Obstet & Gynecol, Intervent & Technol CLINTEC, Stockholm, Sweden
[8] UiT Arctic Univ Norway, Fac Hlth Sci, Inst Clin Med, Womens Hlth & Perinatol Res Grp, Tromso, Norway
[9] Tel Aviv Univ, Meir Med Ctr, Tel Aviv, Israel
[10] Nicolaus Copernicus Univ Torun, Coll Med Bydgoszcz, Fac Hlth Sci, Dept Perinatol Gynacol & Gynecol Oncol, Torun, Poland
[11] Med Univ Silesia, Fac Hlth Sci Katowice, Chair & Dept Gynecol & Obstet, Katowice, Poland
[12] Hosp Univ Austral, Buenos Aires, DF, Argentina
[13] Fetal Med Mexico AC, Villahermosa, Tabasco, Mexico
[14] Ctr Hondureno Med Fetal, Tegucigalpa, Honduras
[15] Univ Francisco Vitoria, Hosp Univ Torrejon, Sch Med, Madrid, Spain
[16] Wayne State Univ, Sch Med, Dept Obstet & Gynecol, Detroit, MI USA
[17] Wayne State Univ, Integrat Biosci Ctr, Off Womens Hlth, Detroit, MI USA
[18] Wayne State Univ, Sch Med, Dept Physiol, Detroit, MI 48201 USA
[19] Pomeranian Med Univ, Dept Obstet & Gynecol, Szczecin, Poland
[20] Natl Inst Perinatol, Clin Res Div, Mexico City, DF, Mexico
[21] Univ Brescia, Dept Clin & Expt Sci, Brescia, Italy
[22] Univ Paris, Maternite Hop Univ Necker Enfants Malad, AP HP, Med & Chirurg Foetales, Paris, France
[23] UiT Arctic Univ Norway, Inst Clin Med, Womens Hlth & Perinatol Res Grp, Tromso, Norway
[24] Univ Hosp North Norway, Dept Obstet & Gynecol, Tromso, Norway
[25] Charite Univ Med Berlin, Med Sch, Dept Obstet, Berlin, Germany
[26] Sarawak Gen Hosp, Maternal Fetal Med Specialist, Kuching, Malaysia
[27] Hosp Nacl Edgardo Rebagliati Martins, Res Unit, Dept Obstet & Gynecol, Lima, Peru
[28] Hosp Tengku Ampuan Afzan, Dept Obstet & Gynaecol, Kuantan, Malaysia
[29] Chinese Univ Hong Kong, Prince Wales Hosp, Dept Obstet & Gynaecol, Hong Kong, Peoples R China