Comparative anatomy and ontogeny of the ductus arteriosus, a vascular outsider M. BergwerffMarco C. DeRuiterAdriana C. Gittenberger-de Groot Review Article Pages: 559 - 571
Morphogenesis of the primary arterial trunks of the forelimb in the rat embryos: the trunks originate from the lateral surface of the dorsal aorta independently of the intersegmental arteries Y. AizawaSumio IsogaiMasaharu Horiguchi Original Article Pages: 573 - 584
Differential development of cholinergic-like neurons in the superior olive: a light microscopic study D. D. SimmonsC. BertolottoM. Wu Original Article Pages: 585 - 595
Increase of segments of elastic-type blood vessel walls in fetal placental stem villi during pre-eclampsia at term Daniel WilhelmUllrich MansmannR. Graf Original Article Pages: 597 - 605
Unusual cell ultrastructure in ventral epidermis of the African reed frog Hyperolius viridiflavus, (Anura; Hyperoliidae) K. E. LinsenmairMira RosenbergM. R. Warburg Original Article Pages: 607 - 614
The extracellular matrix of rat Pacinian corpuscles: an analysis of its fine structure P. DubovýJ. Bednárová Original Article Pages: 615 - 623
Development of the rat phrenic nerve and the terminal distribution of phrenic afferents in the cervical cord Aihua SongD. J. TraceyK. W. S. Ashwell Original Article Pages: 625 - 643
Retinoic acid acts during peri-implantational development to alter axial and brain formation C. M. PaukenJames B. LaBordeB. Bolon Original Article Pages: 645 - 655