“Can an oral supplement with Sambucus nigra, Zinc, Tyndallized Lactobacillus acidophilus (HA122), Arabinogalactans, vitamin D, vitamin E and vitamin C, improve post-surgery quality of recovery? Survey among adult and children to identify potential benefit” (2020) Innovative Journal of Medical and Health Sciences, 10(11), pp. 1367–1372. doi:10.15520/ijmhs.v10i11.3138.