R. Beard
发表
K. Mealy,
R. Beard,
1986,
The British journal of surgery.
J. D. Atwell,
R. Beard,
1974,
Journal of pediatric surgery.
D. Thomas,
C. Hawkes,
D. Fawcett,
1983,
British medical journal.
D. Thomas,
C. Hawkes,
D. Fawcett,
1983
.
D. Thomas,
C. Hawkes,
R. Beard,
1982
.
R. Beard,
2015
.