Gerritsen, S. E., van Bodegom, L. S., Dieleman, G. C., Overbeek, M. M., Verhulst, F. C., Wolke, Dieter, Rizopoulos, D., Appleton, R., van Amelsvoort, T. A. M. J., Bodier Rethore, C., Bonnet-Brilhault, F., Charvin, I., Da Fonseca, D., Davidović, N., Dodig-Ćurković, K., Ferrari, A., Fiori, F., Franić, T., Gatherer, C., de Girolamo, G., Heaney, N., Hendrickx, G., Jardri, R., Kolozsvari, A., Lida-Pulik, H., Lievesley, K., Madan, J., Mastroianni, M., Maurice, V., McNicholas, F., Nacinovich, R., Parenti, A., Paul, M., Purper-Ouakil, D., Rivolta, L., de Roeck, V., Russet, F., Saam, M. C., Sagar-Ouriaghli, I., Santosh, P. J., Sartor, A., Schulze, U. M. E., Scocco, P., Signorini, G., Singh, S. P., Singh, J., Speranza, M., Stagi, P., Stagni, P., Street, C., Tah, P., Tanase, E., Tremmery, S., Tuffrey, A., Tuomainen, H., Walker, L., Wilson, A., Maras, A., Adams, Laura, Allibrio, Giovanni, Armando, Marco, Aslan, Sonja, Baccanelli, Nadia, Balaudo, Monica, Bergamo, Fabia, Bertani, Angelo, Berriman, Jo, Boon, Albert, Braamse, Karen, Breuninger, Ulrike, Buttiglione, Maura, Buttle, Sarah, Schandrin, Aurélie, Cammarano, Marco, Canaway, Alastair, Cantini, Fortunata, Cappellari, Cristiano, Carenini, Marta, Carrà, Giuseppe, Ferrari, Cecilia, Chianura, Krizia, Coleman, Philippa, Colonna, Annalisa, Conese, Patrizia, Costanzo, Raffaella, Daffern, Claire, Danckaerts, Marina, de Giacomo, Andrea, Ermans, Jean-Pierre, Farmer, Alan, Fegert, Jörg M., Ferrari, Sabrina, Galea, Giuliana, Gatta, Michela, Gheza, Elisa, Goglia, Giacomo, Grandetto, MariaRosa, Griffin, James, Levi, Flavia Micol, Humbertclaude, Véronique, Ingravallo, Nicola, Invernizzi, Roberta, Kelly, Caoimhe, Killilea, Meghan, Kirwan, James, Klockaerts, Catherine, Kovač, Vlatka, Liew, Ashley, Lippens, Christel, Macchi, Francesca, Manenti, Lidia, Margari, Francesco, Margari, Lucia, Martinelli, Paola, McFadden, Leighton, Menghini, Deny, Miller, Sarah, Monzani, Emiliano, Morini, Giorgia, Mutafov, Todor, O’Hara, Lesley, Negrinotti, Cristina, Nelis, Emmanuel, Neri, Francesca, Nikolova, Paulina, Nossa, Marzia, Cataldo, Maria Giulia, Noterdaeme, Michele, Operto, Francesca, Panaro, Vittoria, Pastore, Adriana, Pemmaraju, Vinuthna, Pepermans, Ann, Petruzzelli, Maria Giuseppina, Presicci, Anna, Prigent, Catherine, Rinaldi, Francesco, Riva, Erika, Roekens, Anne, Rogers, Ben, Ronzini, Pablo, Sakar, Vehbi, Salvetti, Selena, Martinelli, Ottaviano, Sandhu, Tanveer, Schepker, Renate, Siviero, Marco, Slowik, Michael, Smyth, Courtney, Conti, Patrizia, Spadone, Maria Antonietta, Starace, Fabrizio, Stoppa, Patrizia, Tansini, Lucia, Toselli, Cecilia, Trabucchi, Guido, Tubito, Maria, van Dam, Arno, van Gutschoven, Hanne, van West, Dirk, Vanni, Fabio, Vannicola, Chiara, Varuzza, Cristiana, Varvara, Pamela, Ventura, Patrizia, Vicari, Stefano, Vicini, Stefania, von Bentzel, Carolin, Wells, Philip, Williams, Beata, Zabarella, Marina, Zamboni, Anna, Zanetti, Edda, HASH(0x5651c9679ff8), RS: MHeNs - R2 - Mental Health, Psychiatrie & Neuropsychologie, MUMC+: MA Med Staf Spec Psychiatrie (9), Child and Adolescent Psychiatry / Psychology, Epidemiology, Clinical Child and Family Studies, LEARN! - Child rearing, APH - Mental Health, Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Lille Neurosciences & Cognition - U 1172 (LilNCog), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Centre Hospitalier de Versailles André Mignot (CHV), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), CHU Lille, Centre de recherche en épidémiologie et santé des populations (CESP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, The MILESTONE project was funded by EU FP7 programme under grant number 602442. SPS is part-funded by the National Institute for Health Research (NIHR) Collaboration for Leadership in Applied Health Research and Care West Midlands (NIHR CLAHRC WM), now recommissioned as NIHR Applied Research Collaboration West Midlands. The views expressed in this publication are those of the author(s) and not necessarily those of the NIHR or the Department of Health and Social Care. PS is the co-inventor of the HealthTrackerTM and is the Chief Executive Officer and shareholder in HealthTracker Ltd. FF is a Chief Technical Officer and AK is the Chief Finance Officer employed by HealthTracker Ltd, respectively. FCV publishes the Dutch translations of ASEBA, from which he receives remuneration. AM was a speaker and advisor for Neurim, Shire, Infectopharm, and Lilly (all not related to transition research)., European Project: 602442,EC:FP7:HEALTH,FP7-HEALTH-2013-INNOVATION-1,MILESTONE(2014), The Milestone Consortium, Gerritsen, S, van Bodegom, L, Dieleman, G, Overbeek, M, Verhulst, F, Wolke, D, Rizopoulos, D, Appleton, R, van Amelsvoort, T, Bodier Rethore, C, Bonnet-Brilhault, F, Charvin, I, Da Fonseca, D, Davidovic, N, Dodig-Curkovic, K, Ferrari, A, Fiori, F, Franic, T, Gatherer, C, de Girolamo, G, Heaney, N, Hendrickx, G, Jardri, R, Kolozsvari, A, Lida-Pulik, H, Lievesley, K, Madan, J, Mastroianni, M, Maurice, V, Mcnicholas, F, Nacinovich, R, Parenti, A, Paul, M, Purper-Ouakil, D, Rivolta, L, de Roeck, V, Russet, F, Saam, M, Sagar-Ouriaghli, I, Santosh, P, Sartor, A, Schulze, U, Scocco, P, Signorini, G, Singh, S, Singh, J, Speranza, M, Stagi, P, Stagni, P, Street, C, Tah, P, Tanase, E, Tremmery, S, Tuffrey, A, Tuomainen, H, Walker, L, Wilson, A, Maras, A, Adams, L, Allibrio, G, Armando, M, Aslan, S, Baccanelli, N, Balaudo, M, Bergamo, F, Bertani, A, Berriman, J, Boon, A, Braamse, K, Breuninger, U, Buttiglione, M, Buttle, S, Schandrin, A, Cammarano, M, Canaway, A, Cantini, F, Cappellari, C, Carenini, M, Carra, G, Ferrari, C, Chianura, K, Coleman, P, Colonna, A, Conese, P, Costanzo, R, Daffern, C, Danckaerts, M, de Giacomo, A, Ermans, J, Farmer, A, Fegert, J, Ferrari, S, Galea, G, Gatta, M, Gheza, E, Goglia, G, Grandetto, M, Griffin, J, Levi, F, Humbertclaude, V, Ingravallo, N, Invernizzi, R, Kelly, C, Killilea, M, Kirwan, J, Klockaerts, C, Kovac, V, Liew, A, Lippens, C, Macchi, F, Manenti, L, Margari, F, Margari, L, Martinelli, P, Mcfadden, L, Menghini, D, Miller, S, Monzani, E, Morini, G, Mutafov, T, O'Hara, L, Negrinotti, C, Nelis, E, Neri, F, Nikolova, P, Nossa, M, Cataldo, M, Noterdaeme, M, Operto, F, Panaro, V, Pastore, A, Pemmaraju, V, Pepermans, A, Petruzzelli, M, Presicci, A, Prigent, C, Rinaldi, F, Riva, E, Roekens, A, Rogers, B, Ronzini, P, Sakar, V, Salvetti, S, Martinelli, O, Sandhu, T, Schepker, R, Siviero, M, Slowik, M, Smyth, C, Conti, P, Spadone, M, Starace, F, Stoppa, P, Tansini, L, Toselli, C, Trabucchi, G, Tubito, M, van Dam, A, van Gutschoven, H, van West, D, Vanni, F, Vannicola, C, Varuzza, C, Varvara, P, Ventura, P, Vicari, S, Vicini, S, von Bentzel, C, Wells, P, Williams, B, Zabarella, M, Zamboni, A, and Zanetti, E