function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andreone, F. & Glaw, F. & Nussbaum, R. A. & Raxworthy, C. J.', 3],
    ['Branch, William R. & Bayliss, Julian & Tolley, Krystal A.', 6],
    ['Conradie, Werner & Bittencourt-Silva, Gabriela B.', 5],
    ['Conradie, Werner & Branch, William R. & Watson, Gillian', 14],
    ['David Prötzel & Miguel Vences & Oliver Hawlitschek', 4],
    ['Dondorp, Esther & Denzer, Wolfgang', 3],
    ['Figueroa, Alex & Low, Martyn E. Y. & Lim, Kelvin K. P.', 3],
    ['Frank Glaw & Jörn Köhler & Ted M. Townsend & Miguel Vences', 4],
    ['Koppetsch, Thore & Necas, Petr & Wipfler, Benjamin', 2],
    ['Laurenti, Joseph Nicolas', 5],
    ['Prötzel, David & Scherz, Mark D. & Ratsoavina, Fanomezana M.', 5],
    ['Raw, Lynn Roy Graham', 4],
    ['Sánchez-Vialas, Alberto & Calvo-Revuelta, Marta', 6],
    ['Tilbury, Colin R. & Tolley, Krystal A.', 5],
    ['Tilbury, Colin R. & Tolley, Krystal A. & Branch, William R.', 3],
    ['Other (16)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=91)',
    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);