Empirical evidence of bias in infertility research: overestimation of treatment effect in crossover trials using pregnancy as the outcome measure

The Measurement of Observer Agreement for Categorical Data

1977 • 70,424 citations

Assessing the quality of reports of randomized clinical trials: Is blinding necessary?

1996 • 17,261 citations

Weighted kappa: Nominal scale agreement provision for scaled disagreement or partial credit.

1968 • 7,926 citations

Empirical evidence of bias. Dimensions of methodological quality associated with estimates of treatment effects in controlled trials

1995 • 5,696 citations

Empirical Evidence of Bias

1995 • 5,260 citations

Goodness of fit tests for the multiple logistic regression model

1980 • 1,646 citations

The two‐period cross‐over clinical trial.

1979 • 1,402 citations

Assessing the quality of randomized controlled trials: An annotated bibliography of scales and checklists

1995 • 1,323 citations

A Consumer's Guide to Subgroup Analyses

1992 • 910 citations

Bias in Treatment Assignment in Controlled Clinical Trials

1983 • 889 citations

15 Design and Analysis of Cross-Over Trials

2007 • 877 citations

Cross-Over Trials in Clinical Research

1994 • 784 citations

Design and Analysis of Cross-Over Trials

1989 • 630 citations

Crossover and Self-Controlled Designs in Clinical Research

1984 • 333 citations

The Two-Period Crossover Design in Medical Research

1989 • 139 citations

Crossover Trials in Clinical Research

1993 • 104 citations

The infertile couple.

1994 • 89 citations

Infertility:Treatment of male infertility: is it effective? Review and meta-analyses of published randomized controlled trials

1993 • 81 citations

The Randomized Clinical Trial and Therapeutic Decisions.

1983 • 73 citations

Infertility treatment: from cookery to science. The epidemiology of randomised controlled trials

1993 • 69 citations

The Infertile Couple

1993 • 50 citations

Treatments of male infertility

1994 • 1 citations