syndromic disease movement disorder Sandifer syndrome https://github.com/monarch-initiative/mondo/issues/6743 https://rarediseases.info.nih.gov/diseases/9684/sandifer-syndrome https://www.malacards.org/card/sandifer_syndrome NCIT:C113397 Sandifer syndrome is a paroxysmal dystonic movement disorder occurring in association with gastro-oesophageal reflux, and, in some cases, hiatal hernia. UMLS:C0338465 MEDGEN:90922 SCTID:230314007 MedDRA:10066142 Orphanet:71272 GARD:0009684 MONDO:0019104 Sandifer's syndrome MESH:C537234