function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Botero-Trujillo, Ricardo', 1],
    ['Botero-Trujillo, Ricardo & Flórez, Eduardo', 10],
    ['Botero-Trujillo, Ricardo & Noriega, Jorge Ari', 1],
    ['Giupponi, Alessandro & de Vasconcelos, Eduardo', 4],
    ['Kovařík, František', 1],
    ['Kovařík, František & Teruel, Rolando & Lowe, Graeme', 1],
    ['Lourenço, Wilson R.', 16],
    ['Lourenço, Wilson R. & Florez, Eduardo', 1],
    ['Miranda, Roberto J. & de Armas, Luis F.', 1],
    ['Ythier, Eric', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=43)',
    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);