For each of the forms of radiation listed on the left select the most appropriate association from the list on the right

The answer is A, D, C. Chronic myeloid leukaemia occurred in radiologists who calibrated x-ray machinery using their arms; more penetrating x-rays are able to reach the haematopoietic marrow.

Skin cancer occurred in the earlier days of radiology when soft x-rays were used, and calibration was performed as above.

Malignant melanoma (as well as squamous carcinoma and basal cell carcinoma) occur in white-skinned people exposed to high intensity sunlight.

Gastric carcinoma (B) and squamous carcinoma of the mouth (E) may be associated with irritation or trauma to mucosal surfaces, i.e., peptic ulcer, ill-fitting dentures.