function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bai, Xing-Long & Ren, Guo-Dong', 59],
    ['Ghahari, H. & Havaskary, M. & Tabari, M. & Ostovan, H.', 3],
    ['Li, Y. C. & Egorov, Veonid V. & Shi, A. M.', 2],
    ['Li, Yun-Chun & Egorov, L. V. & Shi, Ai-Min', 5],
    ['Ling Bai & Guodong Ren', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=81)',
    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);