1. Role of amniocentesis in the intrauterine detection of genetic disorders;Nadler;N. Engl. J. Med.,1970
2. Amniotic-fluid alpha-fetoprotein measurement in antenatal diagnosis of anencephaly and open spina bifida in early pregnancy;United Kingdom Collaborative Study on Alpha-fetoprotein in Relation to Neural-tube Defects;Lancet,1979
3. Ultrasound in the diagnosis of congenital anomalies;Hobbins;Am. J. Obstet. Gynecol.,1979
4. Fetoscopy: Its genesis and promise;Phillips,1978
5. The radiographic prenatal diagnosis of the generalized bone dysplasias and other skeletal abnormalities;Lachman;Birth Defects,1979