function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Altaba, Cristian R.', 3],
    ['Breure, Abraham S. H. & Ablett, Jonathan D.', 2],
    ['Dedov, Ivailo & Antonova, Vera', 6],
    ['Frank, Christa', 2],
    ['Guemues, Burcin Askim & Neubert, Eike', 10],
    ['Hausdorf, B', 4],
    ['Inkhavilay, Khamla & Sutcharit, Chirasak & Bantaowong, Ueangfa', 3],
    ['Kramarenko, S. S. & Kunakh, O. N. & Zhukov, A. V.', 3],
    ['Plazzi, Federico & Pedroni, Guido', 3],
    ['Ruud, A. Bank & Henk P. M. G Menkhorst & Eike Neubert', 13],
    ['Wu, Min & Gao, Linhui', 14],
    ['Wu, Min & Xu, Qin', 11],
    ['Wu, Min & Zheng, Wei', 18],
    ['Yanes, Yurena & Martín, Javier & Moro, Leopoldo', 6],
    ['Yanes, Yurena & Santana, Jesús & Artiles, Miguel', 7],
    ['Other (9)', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=116)',
    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);