Cancer Congresses 54 Neoplasms 45 Research 31 Breast 28 Chemotherapy 28 Tumors 22 Prevention 19 Patients 16 Treatment 16 Diagnosis 14 Immunological aspects 14 Oncology 14 Periodicals 14 Radiotherapy 13 Carcinogenesis 12 Statistics 11 Nutritional aspects 10 Etiology 9 Photochemotherapy 9 Diet therapy 8 Diseases 8 Surgery 8 Antineoplastic agents 7 Carcinogens 7 Immunotherapy 7 Lasers in medicine 7 Nursing 7 Therapeutic use 7 Cervix uteri 6