Product, Smoking Regime (e.g. Traditional combustible, ENDS), Smoke Fraction, etc.

https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=969610#null

One study (Original sample of TK6 cells)

        Multiple products
              Multiple Assays (Multiple types of assays)

                  Assay (MN)
                      3 assay/test conditions; 
                             Treatment duration (2: ST, LT);
                             Presence of metabolic activation (2: presence, type)

                                    Concentrations of product (6 of these: 0, x, y, z,..., +CNTL);
                                    CytoTox % (3 different percentages from testing 1 portion of the original sample)
                                                4 MN counts conducted (on 4 different portions of original sample?)