function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Burks, Roger A. & Masner, Lubomir & Johnson, Norman F.', 186],
    ['Johnson, Norman F & Burks, Roger & Austin, Andrew & Zaifu, Xu', 34],
    ['Kieffer, Jean-Jacques', 1],
    ['Kieffer, Jean-Jacques A.', 1],
    ['Kononova, Svetlana V. & Fursov, Victor Nikolaevich', 2],
    ['Lê, X. H.', 1],
    ['Mo, Wen-Hui & Chen, Hua-Yan & Johnson, Norman F. & Pang, Hong', 37],
    ['Mo, Wen-hui & Chen, Hua-yan & Pang, Hong & Liu, Jing-xian', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=267)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);