function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aignon, Hyppolite L. & Jabeen, Sana & Naseer, Arooj', 4],
    ['Buyck, Bart & Eyssartier, Guillaume & Dima, Bálint', 4],
    ['Deng, Lun-Sha & Kang, Rui & Zeng, Nian-Kai & Yu, Wen-Jie', 2],
    ['Deng, Lun-Sha & Yu, Wen-Jie & Zeng, Nian-Kai & Liu, Li-Jie', 1],
    ['Saba, Malka & Haelewaters, Danny & Pfister, Donald H.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 5, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);