The Postoperative Radiotherapy in N1 Breast Cancer Patients

"* Regional RT includes high-tangent field, and can include undissected axilla.~* The definition of high-tangent is that the upper margin of the radiotherapy field located within 2 cm of the humeral head to include axillary levels I and II.~* Both hypofractionated and conventionally fractionated radiation therapy are allowed, and 3-dimensional or intensity modulated radiotherapy are allowed. The electron beam can also be used."

"* Regional RT includes high-tangent field, and can include undissected axilla.~* The definition of high-tangent is that the upper margin of the radiotherapy field located within 2 cm of the humeral head to include axillary levels I and II.~* Both hypofractionated and conventionally fractionated radiation therapy are allowed, and 3-dimensional or intensity modulated radiotherapy are allowed. The electron beam can also be used."