Ravichandran Ashwin, one of India's finest match-winners in Test cricket, announced his retirement from international cricket on Wednesday. Tributes have been pouring in from past and present ...

Protocadherin 19 (PCDH19) is an adhesion molecule involved in cell-cell interaction whose mutations cause a drug-resistant form of epilepsy, named PCDH19-Clustering Epilepsy (PCDH19-CE, MIM 300088).