author = { Guena, Mathurin Neossi AND Alapha, Florent Zilbinkai AND Maleu Kemegne, Doris Christelle AND Nana, Achille Nkigoum AND Zeh, Odile Fernande AND Fotsing, Joseph Gonsu },

title = { Ultrasound Study of First Trimester Bleeding },

publisher = {Scientific Research Publishing, Inc.},

isbn = {2164-3024},

isbn = {2164-3032},

keywords = { General Engineering },

year = {2019},

url = { http://slubdd.de/katalog?TN_libero_mab2 }