3Richard HP,Theodore JD,Dennis AJ.The chorionic rim and low-impedance intrauterin arterial flow in the diagnosis of early inter-wterine pregnancy:evaluation of efficacy,AJR,1996,167:1479-1485. 被引量:1
4ParveyH,Dubinsky TJ,Johnston DA,et al.The chorionic ri m andlow-i mpedance intrauterine arterial flowin the diagnosis of earlyinteruterine pregnancy:evaluation of efficacy[J].American Journal of Roentgenology,2011(11):247-248. 被引量:1