[No authors listed]
S C Dent J. 1975;33(1):78-9.
PMID: 779011

Posteraro AF.
N Y J Dent. 1968 Dec;38(10):446-7.
PMID: 4879670

[No authors listed]
J Conn State Dent Assoc. 1969 Jan;43(1):57-8.
PMID: 4975087

[No authors listed]
J Conn State Dent Assoc. 1968 Apr;42(2):76-7.
PMID: 4968395

[No authors listed]
J Conn State Dent Assoc. 1966 Apr;40(2):39.
PMID: 4957563

[No authors listed]
J Dist Columbia Dent Soc. 1969 Nov;44(6):167.
PMID: 5267306

McEldowney RW.
Pa Dent J (Harrisb). 1966 Jun;33(6):186 passim.
PMID: 4161404