Differences between crossover and parallel study designs--debate?
Fertil Steril
.
1999 Apr;71(4):771-3.
doi: 10.1016/s0015-0282(98)00495-6.
Author
S Daya
PMID:
10202896
DOI:
10.1016/s0015-0282(98)00495-6
No abstract available
Publication types
Comment
Comparative Study
Letter
MeSH terms
Cross-Over Studies*
Epidemiologic Research Design*
Humans
Infertility / therapy