Moazen, Fatemeh, Fatemeh Shafiee, Marjan Doostan, Hamid Mir Mohammad Sadeghi, and Mohammad Rabbani. 2014. “Molecular Cloning and Expression of Rat µ-Opioid Receptor in Escherichia Coli (BL21)”. Archives of Advances in Biosciences 5 (4). https://doi.org/10.22037/jps.v5i4.7621.