function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Groll, Elisa Von', 1],
    ['Nápoles, Jesús Romero & Westcott, Richard L.', 1],
    ['Pérez-Hernández, Cisteil Xinum', 1],
    ['Ribeiro-Costa, Cibele S. & Almeida, Lúcia M. & Caron, Edilson', 25],
    ['Ribeiro-Costa, Cibele Stramare & Vieira, Marcelli Krul', 5],
    ['Romero, Jesús & Johnson, Clarence Dan', 1],
    ['Santos, Aluska Tavares Dos & Ribeiro-Costa, Cibele Stramare', 16],
    ['Viana, Jéssica Herzog & Ribeiro-Costa, Cibele Stramare', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=51)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);