function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dufek, Matias Ignacio & Mello-Patiu, Cátia Antunes', 2],
    ['Filho, Fernando Da Silva Carvalho & Esposito, Maria Cristina', 3],
    ['Mello-Patiu, Cátia Antunes De', 8],
    ['Santos, Josenilson Rodrigues dos & Pape, Thomas', 8],
    ['Silva, K. P. & Mello-Patiu, C. A.', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=37)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 5, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);