function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boano, Giovanni & Belemsobgo, Urbain & Silvano, Fabrizio', 1],
    ['Bowie, Rauri C. K. & Cohen, Callan & Crowe, Timothy M.', 1],
    ['Brodkorb, Pierce', 1],
    ['Dejean, P. F. M. A.', 1],
    ['Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L.', 1],
    ['Lima, Rafael Dantas & Silveira, Luís Fábio', 1],
    ['Ogilvie-Grant, William Robert', 2],
    ['Sánchez-Montes, Sokani & Colunga-Salas, Pablo', 1],
    ['Vieillot, Louis Pierre', 1],
    ['Vitorino, Breno Dias & Vilas Boas da Frota, Angélica', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=11)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);