title: Regular and frequent sexual intercourse for elderly men could preserve erectile function.
authors.forename: Yanlei
authors.initials: Y
authors.lastname: Ma
authors.forename: Huanlong
authors.initials: H
authors.lastname: Qin
mesh_terms: D000368:Aged; D000375:Aging / Q000502:physiology*; D003075:Coitus / Q000502:physiology*; D007172:Erectile Dysfunction / Q000503:physiopathology* / Q000517:prevention & control*; D019317:Evidence-Based Medicine; D006801:Humans; D008297:Male; D008875:Middle Aged; D010410:Penile Erection / Q000502:physiology*; D010413:Penis / Q000502:physiology*