R. Gregg

发表

Leigh E. Colby, D. Harris, R. Gregg, 2004, General dentistry.

R. Gregg, J. Muldoon, A. Bartoletti, 1989, Pediatrics.

R. Gregg, D. Mccarthy, 2002, Dentistry today.

R. Gregg, D. K. Mccarthy, 1998, Dentistry today.

C. L. Giles, R. Gregg, N. Chang, 1966, American journal of diseases of children.

R. Gregg, N. Chang, A. J. Brough, 1968, Pediatrics.

R. Gregg, A. J. Brough, J. Hertzler, 1968, Pediatrics.

R. Gregg, 1982, American journal of obstetrics and gynecology.

Robert H Gregg, R. Gregg, 2006, Dentistry today.

R. Gregg, D. K. Mccarthy, 1998, Dentistry today.

R. Gregg, 1981, American journal of obstetrics and gynecology.

David M. Harris, Dawn M. Nicholson, Delwin McCarthy, 2014, Photonics West - Biomedical Optics.