[Results of follow-up studies in 119 periodontal treatments by means of machine-punched cards].
D003792:Dental Records; D005500:Follow-Up Studies; D005860:Germany, West; D006801:Humans; D010510:Periodontal Diseases / Q000628:therapy*; D011676:Punched-Card Systems
Ergebnisse aus Nachuntersuchungen von 119 systematischen Parodontalbehandlungen anhand von Maschinen-Lochkarten