function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahyong, Shane T.', 1],
    ['Coelho, Petrônio Alves & Almeida, Alexandre Oliveira De', 1],
    ['Davie, Peter J. F. & Ng, Peter K. L. & Dawson, Elliot W.', 1],
    ['Landeria, José M. & Tamura, Hiroaki', 1],
    ['Mantelatto, Fernando L. & Tamburus, Ana Francisca', 1],
    ['Martin, Joel W. & Haney, Todd A.', 3],
    ['Muñoz, Isabel & García-Isarch, Eva & Cuesta, Jose A.', 1],
    ['S, M A R C O S Tava R E & Pinheiro, Allysson P.', 2],
    ['Souza-Filho, Jesser Fidelis De', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);