function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barnouin, Thomas & Soldati, Fabien & Roques, Alain', 1],
    ['Beaver, R. A. & Liu, L. Y.', 1],
    ['Beaver, R. A. & Sittichaya, W. & Liu, L-Y.', 5],
    ['Córdoba, Silvia P. & Atkinson, Thomas H. & Mendoza, Eduardo A.', 1],
    ['Knížek, Miloš & Smith, Sarah M.', 1],
    ['Marchioro, Matteo & Faccoli, Massimo & Dal Cortivo, Marialuisa', 1],
    ['Sittichaya, Wisut & Smith, Sarah M.', 7],
    ['Sittichaya, Wisut & Smith, Sarah M. & Beaver, Roger A.', 3],
    ['Smith, Sarah M. & Beaver, Roger A. & Cognato, Anthony I.', 18],
    ['Smith, Sarah M. & Beaver, Roger A. & Sittichaya, Wisut', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=40)',
    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);