Rigorous peer-review is the corner-stone of high-quality academic publishing. The editorial team greatly appreciates the reviewers who contributed their knowledge and expertise to the journal’s editorial process over the past 12 months. In 2019, a total of 62 papers were published in the journal, with a median time to first decision of 26 days and a median time to publication of 54 days. The editors would like to express their sincere gratitude to the following reviewers for their cooperation and dedication in 2019:
| Acou, Anthony | Magor, Bradley |
| Andrade, José Pedro | Mahe, Kelig |
| Armani, Andrea | Mancinelli, Giorgio |
| Arula, Timo | Mandrak, Nicholas |
| Baßmann, Björn | Manuel, Remy |
| Becerra Jurado, Gustavo | Martinez, Paulino |
| Beck, Caroline | Mateo, Maria |
| Beffa, Manuel Marí | Mayer, Ian |
| Bergen, Dylan J. M. | McLaughlin, Robert |
| Białek, Małgorzata | Mensinger, Allen |
| Blahova, Jana | Merilä, Juha |
| Bøgwald, Jarl | Metz, Juriaan |
| Braden, Laura Marie | Micha, Jean-Claude |
| Bradshaw, Patrick | Michl, Stéphanie Céline |
| Brown, Culum | Miranda, Rafael |
| Buchinger, Tyler | Miura, Takeshi |
| Capoccioni, Fabrizio | Miyanishi, Hiroshi |
| Carral Llamazares, José Manuel | Mock, Thomas |
| Carrella, Ernesto | Morgan, David |
| Cavallero, Serena | Muñoz, Pilar |
| Chen, Xiaowu | Mylonas, Constantinos |
| Cipriani, Paolo | Nakashima, Motomu |
| Colson, Violaine | Näslund, Joacim |
| Colussi, Silvia | Navarro, Carmen |
| Coulson, Peter G. | Newman, Stuart A. |
| Crapo, Charles | Nilsson, R. Henrik |
| Cuesta, Alberto | Nocillado, Josephine |
| Dalmo, Roy | Novinec, Marko |
| Dan, Shigeki | Oesterwind, Daniel |
| Dariel, Tovar-ramírez | Olivotto, Ike |
| Darmon, Michel | Pacheco, Mario |
| David, Bierbach | Palma, Mariana |
| DeMarais, Alyce | Pandelides, Zacharias |
| Devico, Gionata | Partridge, Gavin |
| Diaz De Cerio, Oihane | Passos, Marisa |
| Dixon, Brian | Pastorino, Paolo |
| Domingos, Isabel | Patiño, Reynaldo |
| Eguiraun, Harkaitz | Pearce, Christopher |
| Eiras, Jorge | Pickova, Jana |
| Elkins, Duncan | Pietsch, Constanze |
| Elks, Philip | Pine, Harvey |
| Enders, Eva | Pirhonen, Juhani |
| Fauconneau, Benoit | Pombo, Ana |
| Fernandez, Marina O. | Pratte, Zoe |
| Fine, Michael | Prearo, Marino |
| Forster, Ian | Pyzik, Michal |
| Freitas, Renata | Reverter, Miri |
| Gajardo, Gonzalo | Risius, Antje |
| Galindo-Villegas, Jorge | Robins, Julie |
| Ghosh, Sumit | Romo, Maria Del Mar Ortega-villaizan |
| Giacomello, Emiliana | Roques, Jonathan |
| Goldstein, Jason | Saitoh, Kenji |
| Goodbody-Gringley, Gretchen | Santos López, Jorge Arturo |
| Guerreiro, Pedro Miguel | Santos, Jose Maria |
| Gutmann Roberts, Catherine C.H. | Sanz-Ronda, Javier |
| Haddy, James | Saraiva, Joao |
| HAN, YU-SAN | Schorr, Mark S. |
| Hano, Takeshi | Sheen, Shyn-Shin |
| Heindler, Franz M. | Shelton, Delia |
| Hempel, Mattias | Skov, Peter Vilhelm |
| Hesp, Alex | Sneddon, Lynne |
| Hoey, Andrew | Socha, Magdalena |
| Hortle, Elinor | Sogabe, Atsushi |
| Huertas, Mar | Sorensen, Peter |
| Hyvärinen, Pekka | Spruell, Paul |
| Itzkowitz, Murray | Stadtlander, Timo |
| Jarosław, Król | Steinhagen, Dieter |
| Jijakli, Haïssam | Stiasny, Martina H. |
| Jolley, Jeffrey C | Stien, Lars Helge |
| Juan F, Asturiano | Sturm, Armin |
| Kaneko, Gen | Syromyatnikov, Mikhail Y. |
| Kapusta, Andrzej | Tanaka, Minoru |
| Karapanagiotidis, Ioannis | Thomson, Jack |
| Keller-Costa, Tina | Thorarinsdottir, Ragnheidur |
| Kiyofuji, Hidetada | Tibblin, Petter |
| Köhler, Heinz-R. | Tibullo, Daniele |
| Korpinen, Samuli | Tomkiewicz, Jonna |
| Kowalski, Radoslaw Kajetan | Trianni, Michael |
| Kuhn, David | Tsutsui, Shigeyuki |
| Ladich, Friedrich | Vasconi, Mauro |
| Lampert, Kathrin | Vindas, Marco |
| Lawrence, Christian | Walton, William Cameron |
| Lee, Kuo-Kau | Wills, Paul S. |
| Li, Gen | Wong, Marty Kwok-Shing |
| Li, Keshuai | Wong, Tentsao |
| Lie, Kai Kristoffer | Xu, Elvis Genbo |
| Lindsay, Angus | Yanes-Roca, Carlos |
| Liu, Kwang-Ming | Zahan, Marius |
| Lively, Julie A. | Zander, Katrin |
| Lokman, Mark | Zanella, Davor |
| Lothian, Angus J. |
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