The artiology of respiratory tract cancer in the South African Bantu; clinical aspects.
D044383:Black People; D006801:Humans; D012137:Respiratory System; D012142:Respiratory Tract Neoplasms; D012907:Smoking / Q000009:adverse effects*; D014026:Nicotiana
RESPIRATORY TRACT/neoplasms; SMOKING/injurious effects; TOBACCO