Small marker chromosomes in a series of 1,000 prenatal diagnoses by amniocentesis

1. Carrasco Juan, J.L.
2. Otero Gomez, A.
3. Vilar Mesa, M.C.
4. Garcia Miranda, J.L.
5. Troyano Luque, J.M.
6. Lopez Ramon y Cajal, C.
7. Parache Hernandez, J.