The novel's interstitial chapters.

The outer surface is covered with variable amounts of dental plaque and saliva. The inner surface is bathed in interstitial fluid or lymph.

2008, E. G. Seebauer et al., Defect Engineering for Ultrashallow Junctions using Surfaces, in P. J. Timans, E. P. Gusev, H. Iwai, D.-L. Kwong, M. C. Öztürk, F. Roozeboom (editors),…