Subject(s)

Radiation Oncology/history , Built Environment/history , Communicable Diseases, Imported/history , Forecasting , Health Workforce/statistics & numerical data , History, 15th Century , History, 16th Century , History, 19th Century , History, 20th Century , History, Ancient , Humans , Indians, South American/history , Neoplasms/radiotherapy , Peru , Population Growth , Radiation Oncology/statistics & numerical data , Radiotherapy/history , Trephining/history