Breast T A Total or nearly total therapeutic effect T B Greater than 50 therapeutic effect T C Less than 50 therapeutic effect T D No therapeutic effect N A Therapeutic effect but no metastasis N B No metastasis, no therapeutic effect N C Therapeutic effect but metastasis N D Metastasis, no therapeutic effect best cialis online arm swelling in low and middle income countries LMICs, which included only one study from SSA, could not obtain a pooled estimate because of large between study heterogeneity 6