Radiation Therapy
D0 Central and Peripheral Nervous System
D7 Lymphatic and Hematologic System
D8 Eye
D9 Ear, Nose, Mouth and Throat
DB Respiratory System
DD Gastrointestinal System
DF Hepatobiliary System and Pancreas
DG Endocrine System
DH Skin
DM Breast
DP Musculoskeletal System
DT Urinary System
DU Female Reproductive System
DV Male Reproductive System
DW Anatomical Regions