Figure 2From: Adjuvant radiotherapy of regional lymph nodes in breast cancer - a meta-analysis of randomized trialsOverall survival. The area of the symbols reflect the number of patients, MS + IM = medial supraclavicular and internal mammary lymph node irradiation, WBI/CWI = whole breast irradiation or chest wall irradiation, MS = medial supraclavicular lymph node irradiation.Back to article page