function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cordeiro, Isabelle R S & Moreira, Felipe F F', 2],
    ['Damgaard, Jakob & Moreira, Felipe Ferraz Figueiredo', 1],
    ['Moreira, Felipe Ferraz Figueiredo & Barbosa, Julianna Freires', 29],
    ['Moreira, Felipe Ferraz Figueiredo & Rodrigues, Higor D. D.', 8],
    ['Nieser, Nico & Ruf, Monica Lopez', 10],
    ['Reynoso-Velasco, Daniel', 8],
    ['Rodrigues, Higor D. D. & Ferreira-Keppler, Ruth L.', 1],
    ['Rodrigues, Higor D. D. & Sites, Robert W.', 27],
    ['Rodrigues, Juliana Mourão Dos Santos', 2],
    ['Takiya, Daniela Maeda & Santos, Allan Paulo Moreira', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=92)',
    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);