1. Prenatal diagnosis of haemoglobinopathies;Alter,1981
2. Intrauterine diagnosis of hemoglobinopathies;Alter;Sem Perinatol,1980
3. Prenatal diagnosis of hemoglobinopathies and other hematologic diseases;Alter;J Pediatr,1979
4. Fetoscopy and fetal blood sampling;Benzie,1981
5. Prenatal diagnosis of hemoglobinopathies A review of 15 cases;Alter;N Engl J Med,1976