Vol. 56 Nos. 1/2/3
pp.1-196
The Planaria Model System
Vol. 56 No. 4
pp.197-312
Vol. 56 No. 5
pp.313-408
Vol. 56 Nos. 6/7/8
pp.407-652
The Hydra Model System
Vol. 56 No. 9
pp.653-760
Vol. 56 Nos. 10/11/12
pp.761-986
Female Germ Cells in Development & Tumors