quadrilinear_mass_matrix_lhs  239 old_code/tumor_growth/tumor_growth.h     double quadrilinear_mass_matrix_lhs {0.};
quadrilinear_mass_matrix_lhs  467 old_code/tumor_growth/tumor_growth.h       quadrilinear_mass_matrix_lhs = (-1.) * uniform_time_step * gamma;
quadrilinear_mass_matrix_lhs  472 old_code/tumor_growth/tumor_growth.h       quadrilinear_mass_matrix_lhs = uniform_time_step * gamma;
quadrilinear_mass_matrix_lhs  524 old_code/tumor_growth/tumor_growth.h     uwu_p_chi *= first * second * quadrilinear_mass_matrix_lhs;