R. A. Johnson
发表
W. D. Li,
Y. Sato,
A. V. Filippenko,
2000
.
R. A. Johnson,
I. Nelson,
1960
.
R. A. Johnson,
H. Jagger,
A. Bender,
1990,
American journal of epidemiology.
R. A. Johnson,
J. Mandel,
R. Gibson,
1993,
Epidemiology.
R. A. Johnson,
A. Bender,
A. N. Williams,
1990,
American journal of epidemiology.
R. A. Johnson,
1990,
Journal of the American Statistical Association.
R. A. Johnson,
D. Gerstein,
1998,
American journal of public health.
R. A. Johnson,
J. Hoffmann,
Robert A. Johnson,
2000,
Journal of health and social behavior.
R. A. Johnson,
H. Woltman,
1987,
Sociological methodology.
R. A. Johnson,
2011
.