1. Prolactin and osmoregulation in teleost fishes: a review;Ball;Gen. Comp. Endocrinol,1969
2. Prolactin (fish prolactin or paralactin) and growth hormone;Ball,1969
3. The pituitary gland: anatomy and histophysiology;Ball,1969
4. Bioassay for prolactin using intact Tilapia mossambica acclimated to sea water;Clarke;Amer. Zool,1971