Twin pregnancy with chromosomal abnormalities mimicking a gestational trophoblastic disorder and coexistent foetus on ultrasound. (3rd October 2018) - Ohwaki, Akiko; Nishizawa, Haruki; Aida, Noriko; Kato, Takema; Kambayashi, Asuka; Miyazaki, Jun; Ito, Mayuko; Urano, Makoto; Kiriyama, Yuka; Kuroda, Makoto; Nakayama, Masahiro; Sonta, Shin-Ichi; et al.