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[Primary prevention of neural tube defects: folic acid or levofoline acid?].
Martínez-Frías ML, Rodríguez-Pinilla E, Mejías C, Dequino G. Martínez-Frías ML, et al. Among authors: dequino g. Med Clin (Barc). 2002 Mar 16;118(9):358-9; author reply 359. doi: 10.1016/s0025-7753(02)72385-3. Med Clin (Barc). 2002. PMID: 11900709 Spanish. No abstract available.