共 32 条
[2]
American Academy of Family Physicians, 2012, AM AC FAM PHYS FORM
[3]
[Anonymous], 2013, US OP TREATM CHRON P
[4]
[Anonymous], 2000, SURV METHODOL
[5]
Bachman JG, 2011, 76 U MICH
[9]
Diggle P.J., 1995, ANAL LONGITUDINAL DA