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Internal, External, and Ecological Validity in the Context of Studies on Advance Directives
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Medknow Publications & Media Pvt Ltd
2018
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6241193/ https://www.ncbi.nlm.nih.gov/pubmed/30533962 http://dx.doi.org/10.4103/IJPSYM.IJPSYM_365_18 |