function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 2],
    ['Angulo, Arturo', 1],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Bleeker, Pieter', 6],
    ['Bonaparte, Charles Lucien', 1],
    ['Cantor, Theodore', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Collette, Bruce B.', 3],
    ['Collette, Bruce B. & Parin, Nik V.', 1],
    ['Couch, R. Q.', 1],
    ['Du, Jianguo & Loh, Kar-Hoe & Hu, Wenjia & Zheng, Xinqing', 2],
    ['Edwards, A. J. & Gill, A. C. & Abohweyere, P. O.', 2],
    ['Lesueur, Charles Alexandre', 2],
    ['Smith, J. L. B.', 2],
    ['Steindachner, F.', 2],
    ['Other (19)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=47)',
    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);