Table 1. Primary antibodies for immunohistochemical analysis.

Antibody	Clone	Manufacturer	Dilution
Ki67	MIB-1	Dako, Denmark	1∶100
p16INK4A	6H12	ZETA Corporation, Sierra Madre, CA, USA	1∶400
p27KIP1	EP104	Epi-Plus™, Novus Biologicals, Littleton, CO, USA	1∶500
p53	DO7	Dako, Denmark	1∶100
SKP2	2CBD9	Invitrogen™, Life Technologies, Carlsbad, CA, USA	1∶200
CD133	AC133	Abnova, Taipei, Taiwan	1∶100
actin	ZMSA-5	ZETA Corporation, Sierra Madre, CA, USA	1∶200