Observation on development of trophonemata and fetus in the gravid uterus of Manta alfredi - Ueda, Keiichi; Murakumo, Kiyomi; Toda, Minoru; Nakamura, Mamoru; Mineo, Shoichiro; Fujita, Koji; Soma, Hiroaki; Kokuba, Hiroko; Murai, Noriko; Tanaka, Kayoko (Placenta, 2013)