| web | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3093800/pdf/cln-66-04-681.pdf |
| author | Neide Regina Simoes Olmo, Paulo Hilário do Nascimento Saldiva |
| publication | Clinics (Sao Paulo) |
| date | 2011-01-01 |
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