Name | Info | Provider | Link |
---|---|---|---|
free resource | PubMed Central | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21818214/ | |
free resource | Europe PubMed Central | https://europepmc.org/abstract/MED/21818214 | |
free resource | German Medical Science GMS Publishing House | https://doi.org/10.3205/zma000706 |