Northampton General Hospital, Northampton, United Kingdom
The Queen's Mother's Hospital, Yorkhill, Glasgow, United Kingdom
Liverpool Women's Hospital, Liverpool, United Kingdom
IVI Bilbao, Paseo Landabarri, 1, Leioa-Bizkaia, Spain
IVI Sevilla, Avda. República Argentina, 58, Sevilla, Spain
IVI Barcelona, Ronda General Mitre, 14, Barcelona, Spain
Trident Health System, North Charleston, South Carolina, United States
Methodist Charlton Medical Center, Dallas, Texas, United States
Ohio State University Medical Center, Columbus, Ohio, United States
Southern Fertility Center and Clinical Research, Metairie, Louisiana, United States
Office of Jeffrey Frankel, Seattle, Washington, United States
Western Clinical Research, Torrance, California, United States
Regional Urology, Shreveport, Louisiana, United States
Fédération d'Urologie et Néphrologie, BP69 Hôpital Pasteur, Nice, France
UZ Gasthuisberg Leuven, Leuven, Belgium
Gemeinschaftspraxis Dres Effert und Benedic, Aachen, Germany
The Royal Hallamshire Hospital, University of Sheffield, Jessop Wing, Tree Root Walk, Sheffield, United Kingdom
Leeds General Infirmary, Great George Street, Leeds, United Kingdom
Gemeinschaftspraxis und Tagesklinik, Zingel 29, Hildesheim, Germany
Faculty Hospital Olomouc, Children's Clinic, Endocrinology Outpatient Department, I.P.Pavlova str. 6,, Olomouc, Czech Republic
Service de Pédiatrie, Groupe Hospitalier du Havre, 55 bis, rue Gustave Flaubert, Le Havre cedex, France
Centre d'Endocrinologie Pediatrique, 25 rue Boudet, Bordeaux, France
Department of Medicine, Malmö University Hospital, Malmo, Malmö, Sweden