D. R. Llewelyn
发表
R. Jones,
D. Whittaker,
D. R. Llewelyn,
1975,
British Dental Journal.
W. Wade,
M. Aldred,
D. M. Walker,
1986,
Journal of immunological methods.
D. Smith,
D. R. Llewelyn,
P. J. Crawford,
1977,
The Lancet.
D. R. Llewelyn,
2000,
International Journal of Paediatric Dentistry.