function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alleyne, H. G. & Macleay, William John', 2],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 5],
    ['Angulo, Arturo', 2],
    ['Angulo, Arturo & Betts, Joel T. & González-Alemán, Néstor J.', 2],
    ['Bleeker, Pieter', 5],
    ['Bogorodsky, Sergey V. & Alpermann, Tilman J. & Mal, Ahmad O.', 3],
    ['De Vis, Charles Walter', 1],
    ['Du, Jianguo & Loh, Kar-Hoe & Hu, Wenjia & Zheng, Xinqing', 1],
    ['Golani, Daniel & Bogorodsky, Sergey V.', 4],
    ['Günther, Albert Charles Lewis Gotthilf', 2],
    ['Iwatsuki, Yukio & Heemstra, Phillip C.', 1],
    ['Iwatsuki, Yukio & Kimura, Seishi & Yoshino, Tetsuo', 2],
    ['Jordan, David Starr & Evermann, Barton Warren', 1],
    ['Regan, C. T.', 2],
    ['Zainal Abidin, Danial Hariz & Lavoué, Sébastien', 4],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=43)',
    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);