1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007. There  are no new lasers approved since then.   A   symptom   ( from   Greek   σύμπτωμα , "accident, misfortune, that which befalls", from   συμπίπτω , "I befall", from   συν -   "together, with" +   πίπτω ,