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- [2] SMOKING IS NOT A DISEASE - NO DEDUCTION FOR BREAKING HABIT JOURNAL OF TAXATION, 1979, 50 (04): : 240 - 240
- [4] THE EFFECTIVENESS OF NICOTINE-IMPREGNATED CHEWING GUM IN BREAKING THE SMOKING HABIT PRAXIS UND KLINIK DER PNEUMOLOGIE, 1983, 37 (07): : 273 - 277