Wife of the president, Aisha Muhammadu Buhari, has challenged radiographers in the country to periodically update themselves with contemporary knowledge on the use of complex diagnostic procedures for the benefit of the public.

The charge came amid appeal to the Federal Government to review tax on medical equipment, especially import policies on x-ray equipment, accessories and consumables.

Hajia Buhari made the call yesterday at the opening of the 50th year conference/scientific workshop of the Association of Radiographers of Nigeria in Abuja.