function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Askew, Richard R. & Melika, George & Pujade-Villar, Juli', 6],
    ['Dale-Skey, Natalie & Askew, Richard R. & Noyes, John S.', 20],
    ['Gates, Michael W.', 2],
    ['Gates, Michael W. & Zhang, Y. Miles & Buffington, Matthew L.', 1],
    ['Gómez, J. F. & Nieves-Aldrey, J. L. & Stone, G. N.', 6],
    ['Lotfalizadeh, Hossein & Delvare, Gérard & Cruaud, Astrid', 34],
    ['Madl, Michael', 2],
    ['Notton, David G. & Popovici, Ovidiu A.', 1],
    ['Stojanova, A. & Ghahari, H.', 5],
    ['Xiao, Hui & Zhang, Rui & Gao, Mengqing', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=84)',
    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);