function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beu, Alan G. Dr.', 1],
    ['Darragh, Thomas A.', 1],
    ['Harzhauser, Mathias & Landau, Bernard & Janssen, Ronald', 1],
    ['Jirapatrasilp, Parin & Cuny, Gilles & Kocsis, László', 2],
    ['Kantor, Yuri I. & Stahlschmidt, Peter & Aznar-Cormano, Laetitia', 3],
    ['Kilburn, Richard N.', 4],
    ['Leal, José H.', 1],
    ['Li, Bao Quan & Kilburn, Richard N. & Li, Xin Zheng', 26],
    ['Li, Baoquan & Li, Xinzheng', 2],
    ['Luca, Javier Di & Zelaya, Diego G.', 2],
    ['Morassi, Mauro & Bonfitto, Antonio', 3],
    ['Stahlschmidt, Peter & Fraussen, Koen', 4],
    ['Stahlschmidt, Peter & Poppe, Guido & Tagaro, Sheila', 11],
    ['Swainson, William', 1],
    ['Woodring, Wendell P.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=64)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);