A Study to Evaluate Subjects With Turner Syndrome Treated With Growth Hormone

Inclusion Criteria: * Are girls with Turner syndrome who are being or will be treated with Nutropin, Nutropin AQ, or Protropin * Are willing to keep follow-up appointments throughout study participation * Are girls with Turner syndrome who have submitted Form 4 upon discontinuation and may also submit Form 9 Exclusion Criteria: * Have Noonan syndrome * Subjects treated within the last 6 months with a non-Genentech GH preparation * Have closed epiphyses prior to NCGS enrollment * Have active neoplasia