Barbara incurred the following expenses during the year: $840 dues at a health club she joined at the suggestion of her physician to improve her general physical condition, $240 for multiple vitamins and antioxidant vitamins, $500 for a smoking cessation program, $240 for nonprescription nicotine gum, $600 for insulin, and $7,200 for funeral expenses for her mother who passed away in June. Which of these expenses may be included in computing the medical expense deduction?