List of Articles Civil Code Open Access Article Abstract Page Full-Text 1 - Legal-Jurisprudential Analysis of Conditional Sale Option in Relation to Transactions with Right of Restitution Saeed Karami Open Access Article Abstract Page Full-Text 2 - Validity of Participation Contracts in Medical Research Based on the General Rules of Contracts Mohsen Pour Ali Mohsen Pourmohammad Open Access Article Abstract Page Full-Text 3 - Examination of the grounds for annulment of marriage, physical defects, and duress Elaheh Salehi Ghesmati Akbar Imanpour