A novel tetra-primer ARMS-PCR for genotyping of the OPRM1 gene rs1799971 variant associated with opioid use disorders. - Wijekumar, P. J.; Ranadeva, N. D.K.; Jayamaha, A. R.; Herath, H. M.N.D.M.; Noorden, N.; Fernando, S. S.N. (BMC Research Notes, 2023)