The editorial team greatly appreciates the reviewers who have dedicated their considerable time and expertise to the journal’s rigorous editorial process over the past 12 months, regardless of whether the papers are finally published or not. In 2019, a total of 106 papers were published in the journal, with a median time to first decision of 30 days and a median time from submission to publication of 51 days. The editors would like to express their sincere gratitude to the following reviewers for their generous contribution in 2019:
| Abidu-Figueiredo, Marcelo | Lopes, Ana Patrícia Antunes |
| Achenbach, Jenna E. | López-Gatius, Fernando |
| Ahlstrom, Christina | Lujan, Lluis |
| Amos, William | Lunney, Joan K. |
| Antipova, Veronica | Lutta, Harrison Osundwa |
| Aparacio, Pedro Mayor | Maglio, Melania |
| Aranaz, Alicia | Mahony, Timothy John |
| Arechiga-Ceballos, Nidia | Mantzoukas, Spiridon |
| Awosile, Babafela | Mao, Dagan |
| Azaizeh, Hassan | Maranesi, Margherita |
| Azam, Aa Haeruman | Marc, Daniel |
| Barlow, John | Marconato, Laura |
| Bartlett, Paul | Marletta, Donata |
| Bax, Carmen | Martano, Marina |
| Bazzano, Marilena | Martens, Ann |
| Bellini, Silvia | Martínez-Sánchez, Noelia |
| Bertazzolo, Walter | Martini, Filippo Maria |
| Bertelloni, Fabrizio | Massari, Federico |
| Beyhan, Sinem | Materniak-Kornas, Magdalena |
| Bezos Garrido, Javier | Mathews, Karol Ann |
| Bochniarz, Mariola | Matumba, Limbikani |
| Bøgwald, Jarl | Maurelli, Maria Paola |
| Bongiovanni, Laura | McCleary-Wheeler, Angela L. |
| Borzacchiello, Giuseppe | Mcdonald, Jennider |
| Bovera, Fulvia | McKinley, Trevelyan J. |
| Bown, Kevin | McMurray, David N. |
| Breeze, Beth | Mehlhorn, Heinz |
| Britti, Domenico | Melendez, Pedro |
| Brown, David | Meling, Daryl D. |
| Bueno-Cavanillas, Aurora | Merino, Eva Maria Perez |
| Bulatov, Emil | Meyer-Aurich, Andreas |
| Bulysheva, Anna A. | Mila, Hanna |
| Byrne, Andrew | Mokhtaria, Kouidri |
| Cai, Demin | Moldal, Elena Regine |
| Cambier, Carole | Moreau, Maxim |
| Cameron, Daniel | Moutelíková, Romana |
| Cannon, Claire M. | Mullin, Christine |
| Carrillo, Jeniffer | Neira, Victor M. N. |
| Cassidy, Joseph | Nguyen, Frédérique |
| Castiglioni, Bianca | Nichols, Megin |
| Cerecetto, Hugo | Niedringhaus, Kevin D. |
| Chen, Yi-Ning | Nuttall, Patricia A. |
| Chenais, Erika | Oblak, Michelle |
| Cheng, Ke | Okumura, Hiroki |
| Chochlakis, Dimosthenis | Ozawa, Makoto |
| Clarke, Jonathan | Paes, Geert |
| Connor, Melanie | Paixão, Tatiane Alves |
| Cortese, Laura | Parambeth, Joseph Cyrus |
| Cortey, Marti | Pavicich, Maria Agustina |
| Crasta, Manuela | Pelizzo, Gloria |
| Cribb, Alastair E. | Penrith, Mary-Louise |
| Cutrignelli, Monica Isabella | Pereira, Maria De Lourdes |
| Cwynar, Przemyslaw | Perrucci, Stefania |
| Damiaans, Bert | Perry, Michael J. |
| Dance, David A. B. | Peterson, Karianne Lievaart |
| Dandrieux, Julien R. S. | Phalen, David |
| Dark, Michael | Plaza-Díaz, Julio |
| Datan, Emmanuel | Pozzo, Luisa |
| Davail, Blandine | Prosheva, Valentina |
| De Biase, Davide | Provot, Thomas |
| De Briyne, Nancy | Qiu, Hua-Ji |
| De Rooster, Hilde | Raftery, Alexandra G. |
| Del Chicca, Francesca | Rampazzo, Antonella |
| Devriendt, Nausikaa | Ranadheera, Seneka |
| Dewell, Grant | Ravera, Ivan |
| Dias-Pereira, Patricia | Reavill, Drury |
| Dkhar, Hedwin Kitdorlang | Reed, Kevin F. M. |
| Domínguez Rebolledo, Álvaro Efrén | Reif, Kathryn E. |
| Dooley, Laura M. | Reifinger, Martin |
| Dorman, David C. | Ressel, Lorenzo |
| Douet, Jean-Yves | Riad, Bouzid |
| Drigo, Michele | Riva, Federica |
| Driver, Ashley | Robertson, Ian |
| Dumetre, Aurélien | Rönnberg, Henrik |
| Duran, Sue Hudson | Rose, Nicolas |
| Duszka, Kalina | Roura, Xavier |
| Dvorak, Cheryl | Rudd, Penny |
| Eda, Shigetoshi | Sacco, James |
| Eichwald, Catherine | Sakkas, Hercules |
| Elmi, Alberto | Samy, Ahmed |
| El-Sheikh Ali, Hossam | Sanad, Yasser |
| Emam, Mahmoud Abdelghaffar | Sandro, Rolesu |
| Fan, Jianglin | Sani, Marc-Antoine |
| Fasina, Folorunso Oludayo | Šarkan, Bojan |
| Fei, Andrew Chang-Young | Saxena, Vikas |
| Ferreira, Fernando | Schaefer, Michael |
| Fischer, Amy | Schildgen, Olivier |
| Fonseca-Alves, Carlos Eduardo | Schmidt-Bleek, Katharina |
| Frossard, Jean-Pierre | Schoiswohl, Julia |
| Fthenakis, George | Schotthoefer, Anna M. |
| Gantenbein, Benjamin | Schwarz, Tobias |
| Giacomo, Gnudi | Scribante, Andrea |
| Giger, Urs | Secott, Tim |
| Giovanardi, Davide | Seyfang, Jemma |
| Gómez-Arrue, Javier | Shil, Niraj |
| Goodla, Lavanya | Shimada, Akinori |
| Gordon, Jessica | Shiratori, Hidetaka |
| Gordon, Stephen V. | Simulundu, Edgar |
| Goyal, Rajni | Singh, Pallavi |
| Goy-Thollot, Isabelle | Sinha, Amit |
| Goździewska-Harłajczuk, Karolina | Siniscalco, Dario |
| Grant, Irene | Slana, Iva |
| Gunesekera, Amila | Smith, Dale |
| Hafez, Hafez Mohamed | Smith, Ed |
| Halos, Lenaig | Snyder, Orman (Larry) |
| Ham, Kathleen | Sopena, Joaquín |
| Haney, Evan | Specht, Andrew |
| Hariharan, Harry | Stent, Andrew |
| Hasbun, Jaime | Suárez, Cinta Prieto |
| He, Chend | Suarez-Vega, Aroa |
| He, Qigai | Sultan, Khaled |
| Hearn, Michael J. | Sun, Kunfeng |
| Heller, Martin | Swelum, Ayman |
| Hersperger, Adam R. | Szóstek-Mioduchowska, Anna |
| Hertkorn, Kathleen P. | Szulczyński, Bartosz |
| Heuer, Cord | Tajima, Atsushi |
| Hildreth, Blake | Takeshima, Shinnosuke |
| Hildreth, Michael B. | Takizawa, Naoki |
| Hine, Brad | Tashima, Toshihiko |
| Hofmeister, Erik | Tedesco, Idolo |
| Hotea, Ionela | Thaler, Robert |
| Hubková, Beáta | Thapa, Santosh |
| Huneau, Adeline | Thompson, Nathanael |
| Ilyinskii, Petr O. | Tibor, Magyar |
| Inga, Alberto | Toledo, Alvaro |
| Iorio, Ronald M. | Tomaszewska, Ewa |
| Isoda, Norikazu | Toomer, Gabriela Chavez-Calvillo |
| Jahns, Hanne | Tothova, Csilla |
| Jaja, Ishmael | Tsairidou, Smaragda |
| Jansen, Christine A. | Tufarelli, Vincenzo |
| Jansson, Désirée | Ventrella, Domenico |
| Jefferson, Wendy N. | Verguts, Jasper |
| Jensen, Kirsty | Vezzosi, Tommaso |
| Jeyanathan, Jeyamalar | Villari, Sara |
| Jung, Dong-In | Vrentas, Catherine E. |
| Kajamies, Anu | Wales, Andrew |
| Kang, Seong | Watkins, Craig |
| Kawaji, Satoko | Weiss, Mark L. |
| Kennedy, Richard B. | Wendelburg, Kristin |
| Keuling, Oliver | Whelan, Stephen |
| Kilcawley, Kieran | White, Nathaniel A. |
| Kitajima, Shuji | Whittington, Richard J. |
| Klotz, James | Wojtyczka, Robert |
| Knauer, Whitney | Wolf, Peter |
| Koralur, Munegowda | Wooton-Kee, Clavia Ruth |
| Krockenberger, Mark | Wu, Jack H. Z. |
| Kumar, Anand | Wu, Meng-Yu |
| Kupke, Alexandra | Wycislo, Kathryn |
| Laddomada, Alberto | Xie, Qingmei |
| Laham-Karam, Nihay | Yang, Run-jun Yang |
| Lahbib-Mansais, Yvette | Zaleski, Halina |
| Lei, Zhihai | Zani, Laura |
| Leite, Fábio Pereira Leivas | Zappulli, Valentina |
| Liao, Albert T. | Zarogoulidis, Paul |
| Liegner, Kenneth | Zhalniarovich, Yauheni |
| Linhares Martins Gabriel, Dra. Áurea | Zhang, Guanshi |
| Lipschutz-Powell, Debby | Zhao, Shaying |
| Liu, Jingbo | Zmora, Pawel |
| Lo, Szecheng | Zou, Wei |