Cirumvallate Placenta. Page Links: Definition, Outcome, Screening, References. Definition. Circumvallate placenta refers to a thickened marginal rim of tissue around the chorionic (fetal) surface of the placenta forming a âwall,â which is composed of amnion, chorion, decidua and fibrin. The overall incidence is in the range of 1% to 2%.
âJane Hawk, the compelling heroine of The Silent Corner, returns in another terrifying Dean Koontz conspiracy thriller, The Whispering Room. . . . The character of Jane Hawk is arguably the best character Koontz has created. Knowledge of The Silent Corner helps put some of the narrative in perspective, but itâs not necessary to fall under the authorâs spell.
Jane McGonigalâs Followers (139) Jane McGonigal. Jane McGonigal (born October 21, 1977) is an American game designer and author who advocates the use of mobile and digital technology to channel positive attitudes and collaboration in a real world context.