<prompt> Gas in the aorta after IUFD, is which sign -RobertSpaldingBallBlair-Hartley  <response>: Ans. is a i.e., RobertRadiological signs of 1UFDSignInterval After DeathRobert sign gas in great vessels12 hSpalding sign overlapping of skull bones1 weekBlair-Hartley Ball sign hyperflexion hyperextension of spine with overcrowding of ribs3-4 weeks 