"as any experienced clinician knows diseases can rarely present in a previously unreported way. Therefore a sine qua non today, might not be one tomorrow."
"The pronunciation of the word 'sine' is SI-NAY; in classical Latin all letters are pronounced, i.e. the 'e' is not silent."
""Sine qua non" is a phrase used in radiology, and more widely in clinical medicine, to refer to a symptom, sign, radiology finding, etc., which is absolutely necessary for a diagnosis to be made."
"The pronunciation of the word 'sine' is SI-NAY; in classical Latin all letters are pronounced, i.e. the 'e' is not silent."