function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alleyne, H. G. & Macleay, William John', 3],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 7],
    ['Angulo, Arturo', 5],
    ['Angulo, Arturo & Betts, Joel T. & González-Alemán, Néstor J.', 5],
    ['Bleeker, Pieter', 3],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 7],
    ['Curtiss, A.', 11],
    ['Du, Jianguo & Loh, Kar-Hoe & Hu, Wenjia & Zheng, Xinqing', 3],
    ['Edwards, A. J. & Gill, A. C. & Abohweyere, P. O.', 3],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 4],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 5],
    ['Montrouzier, X.', 4],
    ['Peter Wirtz & Carlos Eduardo L. Ferreira & Sergio R. Floeter', 4],
    ['Rüppell, Wilhem Peter Eduard Simon', 5],
    ['Steindachner, F.', 4],
    ['Other (31)', 48]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=121)',
    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);