function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Avendaño, Jorge Enrique & Cuervo, Andrés M. & Montoya, Paola', 1],
    ['Barcelos, Luis MD & Rodrigues, Pedro R & Bried, Joel', 16],
    ['Boano, Giovanni & Belemsobgo, Urbain & Silvano, Fabrizio', 1],
    ['Fernandez, Juan Manuel & Thomann, Luz & Fandiño, Blas', 3],
    ['Fischer, Wagner & Faria de Godoi, Raquel', 2],
    ['Forster, Johann Reinhold', 2],
    ['Horsfield, Thomas', 2],
    ['Jansen, Justin J. F. J.', 3],
    ['Latham, John', 3],
    ['Lima, Rafael Dantas & Silveira, Luís Fábio', 2],
    ['Linnaeus, Carolus', 17],
    ['Machado, Tatiana Lemos da Silva & Marques de Oliveira, Uéslei', 4],
    ['Mary & Croy', 10],
    ['Mlíkovský, Jiří & Frahnert, Sylke', 3],
    ['Vitorino, Breno Dias & Vilas Boas da Frota, Angélica', 2],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=83)',
    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);