function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chandler, Donald S. & Lewis, Julian J.', 2],
    ['Ferro, Michael L. & Carlton, Christopher E.', 2],
    ['Ferro, Michael L. & Gimmel, Matthew L. & Harms, Kyle E.', 2],
    ['Ghahari, H. & Anlaş, S. & Sakenin, H. & Ostovan, H. & Tabari, M.', 1],
    ['Jiang, Ri-Xin & Yin, Zi-Wei', 10],
    ['Samin, N. & Imani, S.', 1],
    ['Webster, Reginald P. & Chandler, Donald S. & Sweeney, Jon D.', 3],
    ['Yin, Zi-Wei', 3],
    ['Yin, Zi-Wei & Shen, Jia-Wei & Li, Li-Zhen', 4],
    ['Zhang, Wen-Xuan & Yin, Zi-Wei', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);