TY  - GEN
AU  - Barr,J T
AU  - Schechtman,K B
AU  - Fink,B A
AU  - Pierce,G E
AU  - Pensyl,C D
AU  - Zadnik,K
AU  - Gordon,M O
TI  - Corneal scarring in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study: baseline prevalence and repeatability of detection
SN  - 0277-3740
PY  - 1999///0322
KW  - Cicatrix
KW  - diagnosis
KW  - Cornea
KW  - pathology
KW  - Diagnostic Techniques, Ophthalmological
KW  - Disease Progression
KW  - Evaluation Studies as Topic
KW  - Follow-Up Studies
KW  - Humans
KW  - Keratoconus
KW  - Observer Variation
KW  - Photography
KW  - Prevalence
KW  - Prospective Studies
KW  - Reproducibility of Results
KW  - United States
KW  - epidemiology
N1  - Publication Type: Clinical Trial; Comparative Study; Journal Article; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S
ER  -