| Test  | 
        X ± SD (mm)  | 
        Minimum maximum size(mm)  | 
        Positive result  | 
       
      
        | Number of patients  | 
        Percentage of patients  | 
       
      
        | Positive control | 
        11.15 ± 3.79 | 
        1-24 | 
        150 | 
        99.6 | 
       
      
        | Negative control | 
        0.17 ± 1.03 | 
        2-10 | 
        23 | 
        2.6 | 
       
      
        | Orange | 
        3.95 ± 3.25 | 
        3-12 | 
        110 | 
        63.6 | 
       
      
        | Peach | 
        2.10 ± 3.15 | 
        3-10 | 
        56 | 
        32.3 | 
       
      
        | Banana | 
        3.08 ± 3.23 | 
        3-10 | 
        88 | 
        50.9 | 
       
      
        | Apple | 
        3.08 ± 3.11 | 
        4-9 | 
        90 | 
        52.0 | 
       
      
        | Carrot | 
        2.65 ± 3.11 | 
        3-10 | 
        77 | 
        44.5 | 
       
      
        | Potato | 
        1.90 ± 2.83 | 
        4-8 | 
        56 | 
        32.4 | 
       
      
        | Cacao | 
        3.12 ± 2.97 | 
        3-9 | 
        95 | 
        54.9 | 
       
      
        | Walnut | 
        2.85 ± 3.16 | 
        4-9 | 
        82 | 
        47.4 | 
       
      
        | Haselnut | 
        2.88 ± 3.12 | 
        3-9 | 
        85 | 
        49.1 | 
       
      
        | Cow    milk | 
        2.00 ± 2.87 | 
        3-9 | 
        60 | 
        34.7 | 
       
      
        | Chicken | 
        2.02 ± 2.86 | 
        3-9 | 
        61 | 
        35.3 | 
       
      
        | Barleymeal | 
        1.57 ± 2.66 | 
        4-9 | 
        47 | 
        27.2 | 
       
      
        | Fish | 
        1.57    ± 2.60 | 
        4-9 | 
        49 | 
        28.3 | 
       
      
        | Tomato | 
        1.84    ± 2.95 | 
        3-10 | 
        52 | 
        30.0 | 
       
      
        | Onion | 
        0.82    ± 2.28 | 
        4-9 | 
        21 | 
        12.1 | 
       
      
        | Cumin | 
        0.95    ± 2.42 | 
        4-10 | 
        25 | 
        14.4 | 
       
      
        | Olive | 
        1.88    ± 3.16 | 
        3-9 | 
        48 | 
        27.7 | 
       
      
        | Strawberry | 
        1.78    ± 3.09 | 
        3-11 | 
        47 | 
        27.2 | 
       
      
        | Lemonade | 
        1.71    ± 2.84 | 
        2-9 | 
        49 | 
        28.3 | 
       
      
        | Rice | 
        1.39    ± 2.73 | 
        3-10 | 
        38 | 
        21.9 | 
       
      
        | Coffe | 
        1.58    ± 2.87 | 
        3-8 | 
        43 | 
        24.8 | 
       
      
        | Soya | 
        1.20    ± 2.58 | 
        2-9 | 
        33 | 
        19.1 | 
       
      
        | Black Pepper | 
        1.02    ± 2.43 | 
        3-9 | 
        28 | 
        16.2 | 
       
      
        | Bean | 
        0.94    ± 2.41 | 
        4-10 | 
        25 | 
        14.4 | 
       
      
        | Wheat | 
        1.11    ± 2.53 | 
        3-10 | 
        30 | 
        17.3 | 
       
      
        | Kiwi | 
        1.15    ± 2.61 | 
        3-10 | 
        31 | 
        17.9 | 
       
      
        | Corn | 
        0.71    ± 1.99 | 
        3-8 | 
        21 | 
        12.1 | 
       
      
        | Peanut | 
        1.06    ± 2.38 | 
        3-9 | 
        31 | 
        17.9 | 
       
      
        | Egg | 
        0.88    ± 2.12 | 
        4-8 | 
        27 | 
        17.3 | 
       
      
        | Tea | 
        0.65    ± 1.98 | 
        5-9 | 
        18 | 
        0.9 | 
       
      
        | Almonds | 
        0.78    ± 2.08 | 
        3-8 | 
        23 | 
        13.3 | 
       
      
        | Red pepper  | 
        076    ± 2.13 | 
        3-9 | 
        21 | 
        12.1 | 
       
      |