Directions:Revisethefollowingsentenceswherenecessary.Thepurposeofthisstudywastoinvestigatethephenomenonoftissueintegrationofporcinedermalcollagenmembrane(PDCM)invivo.

Directions: Revise the following sentences where necessary. The purpose of this study was to investigate the phenomenon of tissue integration of porcine dermal collagen membrane (PDCM) in vivo.