1. Amniotic fluid culture failure: Possible role of syringes;Garver;N Engl J Med,1976
2. Amniotic fluid-cell culture failure and syringe toxicity;Purvis-Smith;Lancet,1978
3. Amniotic fluid-cell culture failure and syringe toxicity revisited;Ledbetter;Am J Hum Genet,1982
4. Syringe toxicity in amniotic fluid cultures;Howell;Lancet,1983
5. Prenatal diagnosis of genetic disease: A report on 200 amniocenteses;Kohn;Isr J Med Sci,1977