RT Journal Article SR Electronic T1 Overcoming the technical challenges of deep lamellar keratoplasty JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 1548 OP 1549 DO 10.1136/bjo.2005.077396 VO 89 IS 12 A1 M Yamada YR 2005 UL http://bjo.bmj.com/content/89/12/1548.abstract AB