function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Delicado, Diana & Machordom, Annie & Ramos, Marian A.', 13],
    ['Delicado, Diana & Ramos, Marian A.', 2],
    ['Gloeer, Peter & Pesic, Vladimir', 5],
    ['Glöer, Peter & Bouzid, Slimane & Boeters, Hans D', 9],
    ['Glöer, Peter & Grego, Jozef & Erőss, Zoltán Péter', 1],
    ['Glöer, Peter & Gürlek, Mustafa Emre & Kara, Cemil', 5],
    ['Glöer, Peter & Hirschfelder, Hans-Jürgen', 3],
    ['Glöer, Peter & Yıldırım, M. Zeki & Kebapçi, Ümit', 2],
    ['Glöer, Peter & Zettler, Michael Lothar', 3],
    ['Gürlek, Mustafa Emre', 1],
    ['Harzhauser, Mathias & Binder, Herbert', 1],
    ['Neubauer, Thomas A. & Harzhauser, Mathias & Kroh, Andreas', 3],
    ['Neubauer, Thomas A. & Kroh, Andreas & Harzhauser, Mathias', 1],
    ['Radea, Canella & Parmakelis, Aristeidis', 2],
    ['Radea, Canella & Parmakelis, Aristeidis & Velentzas, Athanasios', 2],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=54)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);