The ultrastructure of the morula cells of Eupentacta quinquesemita (Echinodermata: Holothuroidea) and their role in the maintenance of the extracellular matrix
The ultrastructure of the morula cells of Eupentacta quinquesemita (Echinodermata: Holothuroidea) and their role in the maintenance of the extracellular matrix(English)