Kirkland, D J Response by the authors of 'Recommendations for spacing of test chemical concentrations in the mouse lymphoma tk mutation essay (MLA)'. [electronic resource] - Mutation research Nov 1998 - 181-2 p. digital Publication Type: Comment; Letter ISSN: 0027-5107 Subjects--Topical Terms: AnimalsLymphomaMiceMutagenicity Tests--methodsThymidine Kinase--genetics