genderCount: function (drugKeyword) {
                var url = '&count=patient.patientsex&limit=25';
                if (drugKeyword)
                    url = '&search=(patient.drug.openfda.brand_name:' + encodeURIComponent(drugKeyword) + '+patient.drug.openfda.substance_name:' + encodeURIComponent(drugKeyword) + ')' + url;