Twice/week for Please Select 1 2 3 4 weeks. Weekly for Please Select 1 2 3 4 weeks. Fortnightly for Please Select 1 2 3 4 visits. 3 weekly for Please Select 1 2 3 4 visits. 4 weekly for Please Select 1 2 3 4 6 8 10 12 visits. 6 weekly for Please Select 1 2 3 4 6 8 visits