RT Journal Article SR Electronic T1 Horner’s syndrome and apraclonidine eye drops JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP practneurol-2020-002497 DO 10.1136/practneurol-2020-002497 VO 20 IS 4 A1 Edward Margolin A1 Trishal Jeeva-Patel A1 Nicolin Hainc YR 2020 UL http://pn.bmj.com/content/20/4/practneurol-2020-002497.abstract AB