title: Electrospray tandem mass spectrometric investigations of tadalafil and its analogue.
authors.forename: Peng
authors.initials: P
authors.lastname: Zou
authors.forename: Peiling
authors.initials: P
authors.lastname: Hou
authors.forename: Sharon Sze-Yin
authors.initials: SS
authors.lastname: Oh
authors.forename: Min-Yong
authors.initials: MY
authors.lastname: Low
authors.forename: Hwee-Ling
authors.initials: HL
authors.lastname: Koh
mesh_terms: D002243:Carbolines / Q000032:analysis* / Q000737:chemistry; D015394:Molecular Structure; D010726:Phosphodiesterase Inhibitors / Q000032:analysis* / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D000068581:Tadalafil; D053719:Tandem Mass Spectrometry
chemical_list: D002243:Carbolines; D010726:Phosphodiesterase Inhibitors; D000068581:Tadalafil