function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Foldi, Imre', 6],
    ['Gavrilov-Zimin, Ilya A.', 9],
    ['Hodgson, Chris & Foldi, Imre', 22],
    ['Hodgson, Chris & Gamper, Heather & Bogo, Amauri', 23],
    ['Kondo, Takumasa & Gullan, Penny J. & Peronti, Ana L. B. G.', 5],
    ['Mille, Christian & Henderson, Rosa C. & Cazères, Sylvie', 9],
    ['Moghaddam, Masumeh', 12],
    ['Unruh, Corinne M.', 12],
    ['Unruh, Corinne M. & Gullan, Penny J.', 103],
    ['Vea, Isabelle M. & Grimaldi, David A.', 6],
    ['Watson, Gillian W.', 21],
    ['Williams, D. J. & Gullan, P. J.', 7],
    ['Williams, Douglas J. & Ben-Dov, Yair', 7],
    ['Zheng, Xinyi & Watson, Gillian W. & Zhang, Jiangtao', 13],
    ['Zheng, Xinyi & Wu, San’An', 6],
    ['Other (31)', 55]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=316)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);