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APPENDIX 1 BOLD Collaborative Research Group NanShan Zhong (Principal Investigator (PI)), Shengming Liu, Jiachun Lu, Pixin Ran, Dali Wang, Jingping Zheng, Yumin Zhou (Guangzhou Institute of Respiratory Diseases, Guangzhou Medical College, Guangzhou, China); Ali Kocabaxs (PI), Attila Hancioglu, Ismail Hanta, Sedat Kuleci, Ahmet Sinan Turkyilmaz, Sema Umut, Turgay Unalan (Cukurova University School of Medicine, Department of Chest Diseases, Adana, Turkey); Michael Studnicka (PI), Bernd Lamprecht, Lea Schirnhofer (Paracelsus Medical University, Department of Pulmonary Medicine, Salzburg Austria); Eric Bateman (PI), Anamika Jithoo (PI), Desiree Adams, Edward Barnes, Jasper Freeman, Anton Hayes, Sipho Hlengwa, Christine Johannisen, Mariana Koopman, Innocentia Louw, Ina Ludick, Alta Olckers, Johanna Ryck, Janita Storbeck (University of Cape Town Lung Institute, Cape Town, South Africa); Thorarinn Gislason (PI), Bryndis Benedikdtsdottir, Kristin B¨orundsdottir, Lovisa Gudmundsdottir, Sigrun Gudmunds- dottir, Gunnar Gundmundsson (Department of Allergy, Respiratory Medicine and Sleep, Landspitali University Hospital, Reykjavik, Iceland); Ewa Nizankowska-Mogil- nicka (PI), Jakub Frey, Rafal Harat, Filip Mejza, Pawel Nastalek, Andrzej Pajak, Wojciech Skucha, Andrzej Szczeklik,Magda Twardowska (Division of Pulmonary Diseases, Department of Medicine, Jagiellonian University School of Medicine, Krakow, Poland); Tobias Welte (PI), Isabelle Bodemann, Henning Geldmacher, Alexandra Schweda-Linow (Hannover Medical School, Hannover, Germany); Amund Gulsvik (PI), Tina Endresen, Lene Svendsen (Department of Thoracic Medicine, Insti- tute of Medicine, University of Bergen, Bergen, Norway); Wan C Tan (PI), Wen Wang (iCapture Center for Cardiovascular and Pulmonary Research, University of British Columbia, Vancouver, BC, Canada); David M Mannino (PI), John Cain, Rebecca Copeland, Dana Hazen, Jennifer Methvin (University of Kentucky, Lexington, Kentucky, USA); Renato B Dantes (PI), Lourdes Amarillo, Lakan U Berratio, Lenora C Fernandez, Norberto A Francisco, Gerard S. Garcia, Teresita S de Guia, Luisito F Idolor, Sullian S Naval, Thessa Reyes, Camilo C Roa, Jr, Ma. Flordeliza Sanchez, Leander P Simpao (Philippine College of Chest Physicians, Manila, Philippines); Christine Jenkins (PI), Guy Marks (PI), Tessa Bird, Paola Espinel, Kate Hardaker, Brett Toelle (Woolcock Institute of Medical Research, Sydney, Australia); Peter Burney (PI), Caron Amor, James Potts, Michael Tumilty, Fiona McLean (National Heart and Lung Institute, Imperial College, London); Christer Janson (PI), Inga Sif Olafsdottir, Katarina Nisser, Ulrike Spetz Nystr¨om, Gunilla H¨agg, Gun-Marie Bodman Lund (Department of Medical Sciences: Respiratory Medicine & Allergology, Uppsala university, Uppsala, Sweden); Peter Burney (PI), Caron Amor, James Potts, Michael Tumilty, Fiona McLean (National Heart and Lung Institute, Imperial College, London). Thorax Online Archive Visit our Online Archive e available back to 1946. Subscribers may access the entire archive freely. Non-subscribers have free access to all articles prior to 2006. A simple one-time regis- tration is required that grants access to all the free archive content, across all of our specialist titles. To view or to register visit thorax.bmj.com. 726 Thorax 2012;67:718e726. doi:10.1136/thoraxjnl-2011-201445