“It is not associated with such widespread discoloration or hemorrhagic lesions.”

“The children suffered from eye strain, headaches, leg and shoulder pain, malaria, discoloration of hair, rotten teeth and dysentery.”

“Often these plants will have an externally visible dark discoloration of the stem that extends from the soil-line upward into the canopy.”

“For instance, you may experience dryness or even mild discolouration in patches.”

“Tooth decay, fillings and tartar build-up can also all contribute to discolouration.”

“When the job is finished, you should not place items such as mats on the floor for several weeks, as they will cause discolouration.”