SUMMARY OF THE FIVE STUDIES
AUTHOR
GRANULAR RTEC RTECs CASTS CASTS
OTHERS
Gay (1987)
+ + +
Tubular debris
Graber (1991)
+ -- + -- -- +
Bubble cells & OFB
Marcussen (1995)
Total N° of casts
Chawla (2008)
+ + -- --
Perazella (2008)
+ -- + --
Total
4/5 2/5 4/5 3/5