<prompt> All are associated with decreased sense of smell except?ParkinsonismKallmann SyndromeGullain barre syndromeHIV infection  <response>: Gullain barre syndrome does not present with anosmia Non-motor symptoms of Parkinsonism are constipation, anosmia, and REM behavior sleep disorder. Kallmann syndrome presents with anosmia due to olfactory bulb agenesis hypoplasia. HIV infection can also affect olfactory bulbs leading to anosmia 