RT Journal Article SR Electronic T1 Primary calcareous degeneration of the cornea. JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 195 OP 197 DO 10.1136/bjo.53.3.195 VO 53 IS 3 A1 H Mohan A1 D K Gupta A1 D K Sen YR 1969 UL http://bjo.bmj.com/content/53/3/195.abstract AB