Behavior: Appendix 1: IBL protocol for headbar implant surgery in mice

Appendix 1 from the IBL paper: <i>A standardized and reproducible method to measure decision-making in mice.</i><div><i><br></i></div><div>When citing this document, please also cite the associated paper: https://doi.org/10.1101/2020.01.17.909838</div>