[Complications and pitfalls by bone augmentation of maxillary sinus floor].

The article includes description of mistakes and complications occurring during sinus floor elevation procedure, in early post-operate period or late post-operate period. Recommendations have been made to eliminate and prevent their occurrence. The review summarizes data of Russian and foreign literature and our own clinical experience.

[Tear fluid proteome variability in healthy donors].

The variability of control samples is the main problem in clinical proteomics and reliable sources for estimation of variability of normal content of different proteins are not numerous. Most of the investigations of normal human tear proteome include pool of samples as reference materials. But it is impossible to use such experimental approach to establish the range of variability of different tear proteome components.