S. C. Chang

The porcine ovarian follicle: I. Selected chemical analysis of follicular fluid at different developmental stages.

R. Ellefson, R. Ryan, J. Jones, 1976, Biology of reproduction.

Some Observations on the Development and Function of Ovarian Follicles

R. Ryan, Y. Kang, W. Anderson, 1978 .

Early pregnancy diagnosis in sows by progesterone assay with blood paper method.

J. H. Lin, L. Wu, S. Hwang, 1988, The British veterinary journal.

Serum lipoproteins and albumin in the lecithin:cholesterol acyltransferase reaction.

P. Dyck, S. C. Chang, R. Ryan, 1980, Biochemical and biophysical research communications.

The porcine ovarian follicle. II. Electron microscopic study of surface features of granulosa cells at different stages of development.

Y. Kang, J. Lewis, R. Ryan, 1977, Biology of reproduction.