1. Drh Health Foundation 1407 N Whisenant Dr, Duncan, OK 73533 Coordinate: 34.51997,-97.97508 Phone: (580) 251-8844
2. Mohr Separations Research Inc 4115 W Seminole Rd, Duncan, OK 73533 Coordinate: 34.47986,-97.9991 Phone: (918) 299-9290