π€ Salmi, Aimo Keywords π human coronavirus (623) π data suggest (146) π coronavirus strain (67) π virus strain (138) Articles (1) OC43 strainβrelated coronavirus antibodies in different age groups π€ Hovi, Tapani π€ Kainulainen, Helena π€ Ziola, Barry π€ Salmi, Aimo β° 1979 π Journal of Medical Virology