@misc{indiciae9e9d900c7a46, title = {[Introduction].}, author = {F Ortega and J Baltar and M GarcĂ­a-Mendoza and T Ortega and P Rebollo}, year = {2003}, url = {https://pubmed.ncbi.nlm.nih.gov/12901185/}, note = {Source identifier: 12901185} }