title: Substantial deficiencies.
authors.forename: Peter
authors.initials: P
authors.lastname: Goretzki
authors.forename: Bernhard
authors.initials: B
authors.lastname: Lammers
authors.forename: Aristotelis
authors.initials: A
authors.lastname: Touloumtzidis
authors.forename: Thomas
authors.initials: T
authors.lastname: Otto
mesh_terms: D015897:Comorbidity; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000401:mortality*; D015995:Prevalence; D011788:Quality of Life; D012004:Rectal Neoplasms / Q000401:mortality* / Q000601:surgery*; D012735:Sexual Dysfunction, Physiological / Q000401:mortality*; D016896:Treatment Outcome