function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Almeida, Eduardo A. B.', 1],
    ['Batley, Michael & Popic, Tony', 6],
    ['Batley, Michael & Popic, Tony J.', 1],
    ['Donovan, Barry J.', 9],
    ['Gonzalez, Victor H. & Florez, Jaime', 1],
    ['Gonzalez, Victor H. & Sepúlveda, Paula A. & Griswold, Terry L.', 1],
    ['Leijs, Remko & Dorey, James & Hogendoorn, Katja', 28],
    ['Maynard, Glynn Vivian', 79],
    ['Packer, Laurence', 1],
    ['Prendergast, Kit S.', 2],
    ['Rozen, Jerome G. & Houston, Terry F.', 1],
    ['Zakardjian, Marie & Jourdan, Herve & Cochenille, Thomas', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=132)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);