Yes. In general, monoclonal antibodies are our first choice as they produce the most reproducible results with limited lot-to-lot variability. If monoclonal antibodies aren’t available or fail to work for a specific target, we can use polyclonal antibodies. In those cases, we will restrict antibody use to a specific lot and ensure the lot to last for the whole study to avoid lot-to-lot variability. As part of our custom marker offering, we will test and optimize the antibody performance prior to using it on samples.