importFrom("graphics", ".filled.contour", "Axis", "abline", "arrows",
"axis", "box", "grid", "hist", "layout", "lcm", "legend",
"lines", "par", "plot", "plot.new", "plot.window", "points",
importFrom("stats", "IQR", "approxfun", "coef", "cov", "diffinv",
"dist", "fft", "lm", "median", "na.fail", "qchisq",
"quantile", "runif", "sd", "splinefun", "ts", "var")

importFrom("stats", "dexp", "dweibull", "optim", "optimize", "pexp",
"pweibull", "rweibull", "sd", "var", "weighted.mean")

"pweibull", "qexp", "rweibull", "sd", "var",

importFrom("stats", "aggregate", "coef", "lm", "qf", "runif")

importFrom("stats", "aggregate", "coef", "lm", "qf", "runif","na.omit")

importFrom(stats, pnorm, dnorm, qnorm, update,  binomial, lm, glm, na.omit, predict, quantile, sd, optim, pchisq, update.formula, coef, setNames)

importFrom(stats, pnorm, dnorm, qnorm, update,  binomial, lm, glm, na.omit, predict, quantile, sd, optim, pchisq, update.formula, coef, setNames, as.formula, model.matrix)

importFrom(stats, pnorm, dnorm, qnorm, update,  binomial, lm, glm, na.omit, predict, quantile, sd, optim, pchisq, update.formula)

importFrom(stats, pnorm, dnorm, qnorm, update,  binomial, lm, glm, na.omit, predict, quantile,
sd, optim, pchisq, update.formula, coef, setNames, as.formula, model.matrix)
importFrom(graphics, abline, lines, plot.default, grid)

sd, optim, pchisq, update.formula, coef, setNames, as.formula, model.matrix, median, formula)
importFrom(graphics, abline, lines, plot.default, grid, segments)
importFrom(nlme, nlme, varFixed, varPower, nlme.formula)

exportMethods(Query, PMID, Year, Month, Day, Author, ISSN,
Title, ArticleTitle, ELocationID, AbstractText, Affiliation,
Language, PublicationType, MedlineTA, NlmUniqueID, ISSNLinking,
Hour, Minute, PublicationStatus, ArticleId, Volume,
Country, DescriptorName, QualifierName, GrantID, Acronym,

Country,GrantID, Acronym, Agency, RegistryNumber, RefSource, CollectiveName, Mesh)

exportMethods(Cited, Query, PMID, YearAccepted, MonthAccepted, DayAccepted, MinuteAccepted, HourAccepted, YearReceived, MonthReceived, DayReceived, MinuteReceived, HourReceived, YearEpublish, MonthEpublish, DayEpublish, MinuteEpublish, HourEpublish, YearPpublish, MonthPpublish, DayPpublish, MinutePpublish, HourPpublish, YearPmc, MonthPmc, DayPmc, MinutePmc, HourPmc, YearPubmed, MonthPubmed, DayPubmed, MinutePubmed, HourPubmed, Author, ISSN,
Language, PublicationType, MedlineTA, NlmUniqueID, ISSNLinking, PublicationStatus, ArticleId, Volume,