ELhak, S. A. G., Ghanem, A. A. A., AbdelGhaffar, H., Dakroury, S. E., & Salama, M. M. Parkinson's Disease: Is It a Toxic Syndrome? Wiley.
Chicago Style (17th ed.) CitationELhak, Seham A. Gad, Abdel Aziz A. Ghanem, Hassan AbdelGhaffar, Sahar El Dakroury, and Mohamed M. Salama. Parkinson's Disease: Is It a Toxic Syndrome? Wiley.
MLA (9th ed.) CitationELhak, Seham A. Gad, et al. Parkinson's Disease: Is It a Toxic Syndrome? Wiley.
Warning: These citations may not always be 100% accurate.