^{*1. Yong, N. et al., D. (2016). Impact of Laparoscopic Lens Contamination in Operating Theaters: A Study on the Frequency and Duration of Lens Contamination and Commonly Utilized Techniques to Maintain Clear Vision. Surgical laparoscopy, endoscopy & percutaneous techniques, 26(4), 286–289.

*2. Bonrath EM, Gordon LE, Grantcharov TP. Characterising 'near miss' events in complex laparoscopic surgery through video analysis. BMJ Qual Saf. 2015;24(8):516-521.}