Serology plays a very important role in the diagnosis of infectious diseases.

Phenomenology is a branch of philosophy that focuses on the study of human experience and consciousness.

He is an expert in musicology and has a deep knowledge of classical music.

He has a deep interest in toponymy.

He is an expert in neurology.

He has a deep interest in geomancy.

He is an expert in pharmacognosy, and has a deep knowledge about the medicinal value of plants.

He is an expert in pomology and is researching the cultivation methods of many fruits.

He is majoring in Korean studies at university.

He is majoring in architecture.