“Ultrasound-Guided and Peripheral Nerve Stimulator-Guided Interscalene Brachial Plexus Block in a Patient With Neurofibromatosis During the COVID-19 Pandemic”. Acta Medica Philippina, vol. 56, no. 18, Oct. 2022, https://doi.org/10.47895/amp.v56i18.5668.