title: This paper continues Professor Adaikan's distinguished involvement in classical pharmacologic research of erectile physiology.
authors.affiliation: Newcastle University, Newcastle upon Tyne, UK. r.s.pickard@ncl.ac.uk
authors.forename: Robert
authors.initials: R
authors.lastname: Pickard
mesh_terms: D015106:3',5'-Cyclic-GMP Phosphodiesterases / Q000037:antagonists & inhibitors; D054706:Cyclic Nucleotide Phosphodiesterases, Type 5; D007172:Erectile Dysfunction / Q000188:drug therapy* / Q000201:enzymology / Q000503:physiopathology; D006801:Humans; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects*; D009130:Muscle, Smooth / Q000187:drug effects* / Q000503:physiopathology; D010410:Penile Erection / Q000187:drug effects / Q000502:physiology*; D010726:Phosphodiesterase Inhibitors / Q000627:therapeutic use*; D011379:Prognosis
chemical_list: D010726:Phosphodiesterase Inhibitors; D015106:3',5'-Cyclic-GMP Phosphodiesterases; D054706:Cyclic Nucleotide Phosphodiesterases, Type 5; C517381:PDE5A protein, human