Strachan, A, Harrington, Z, McIlwaine, C, Jerreat, M, Belfield, L A, Kilar, A, Jackson, S K, Foey, A & Zaric, S 2019, ' Subgingival lipid A profile and endotoxin activity in periodontal health and disease ', CLINICAL ORAL INVESTIGATIONS, vol. 23, no. 9, pp. 3527-3534 . https://doi.org/10.1007/s00784-018-2771-9