sbah elkheir welkhmir 3likom ....... lyouma prof de physiologie sarana hada mahbouuuuuuuuuuuuulaaaaaa khlana nwalou ladar bakrii hala..oulalahada ta3 lphysique 3maha kamal mafhamttttttt walouuuuuuuuuu00000 alikach mafham ya3tina rou2ous a9lam psq wallah dagatli bazaaaaaaaf merci ala vance............................................. .................................................. .............................................KoGA