Table 1.
List of excluded studies and reasons for exclusion.
| Study | Reasons for Exclusion |
|---|---|
| Furusaka T. et al., 1986 [48] | No plasma source has been used |
| Akhmedov I.N. et al., 2011 [49] | Article in Russian |
| Keidar M. et al., 2011 [50] | No head and neck in vitro or in vivo experiments |
| Virard F. et al., 2015 [51] | No tumoral cell line, but normal primary human fibroblast cultures isolated from oral tissue |
| Adhikari E.R. et al., 2016 [52] | No head and neck in vitro or in vivo experiments |
| Laurita R. et al., 2016 [53] | No head and neck cell line, but mesenchymal stem cells derived from human fetal membranes (FM-hMSCs) |
| Lee J.H. et al., 2016 [54] | No head and neck cell line, but human gingival fibroblasts |
| Tanaka H. et al., 2016 [66] | U251SP cells (human glioblastoma cell line) and MCF10A cells (human mammary epithelial cell line) as models |
| Kang S.U. et al., 2017 [55] | No head and neck cell line, but primary fibroblast cell line |
| Metelmann H.R. et al., 2018 [68] | Case report |
| Han I. et al., 2018 [56] | Abstract for poster/oral presentation |
| Yan D.Y. et al., 2018 [63] | No head and neck cell lines have been used in the experiments |
| Biscop E. et al., 2019 [70] | No head and neck cell lines have been used in the experiments |
| Ghimire B. et al., 2019 [69] | Agarose has been used as tissue model (no head and neck tissues) |
| Hajizadeh K. et al., 2019 [57] | Bone marrow mesenchymal stem cells, no head and neck tumoral cell model |
| Weiss M. et al., 2019 [65] | Primary human fibroblasts isolated from foreskin samples, no head and neck tumoral cell model |
| Zhang H. et al., 2019 [62] | A549 lung carcinoma cells, no head and neck tumoral cell model |
| Bekeschus S. et al., 2020 [61] | SK-MEL-28, MeWo, MaMel86a, Panc-1, Miapaca2GR, HeLa, MDA-MB-231, PC-3, 501-Mel, OVCAR3, and A375; no head and neck tumoral cell model |
| Jaiswal A.S. et al., 2020 [58] | Nasopharyngeal angiofibroma |
| Jing J. et al., 2020 [59] | LTPA by plasma radiometer |
| Moritz J. et al., 2020 [67] | SK-Mel 28, MNT-1, Capan-1, PANC-01, HT-29, SW 480, MCF-7, and MDA-MB-231, no head and neck tumoral cell model. |
| Evert K. et al., 2021 [60] | Only oral normal mucosa model in vivo (mouse) |
| Wang P. et al., 2021 [64] | LTPA by low-temperature bipolar radiofrequency ablation system |