function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Archangelsky, Miguel & Fernández, Liliana A.', 1],
    ['Clarkson, Bruno & Ferreira-Jr, Nelson', 4],
    ['González-Rodríguez, Liza M. & García-Hernández, Andrea L.', 2],
    ['Sharp, David', 1],
    ['Short, Andrew E. Z. & Fikáček, Martin', 5],
    ['Short, Andrew Edward Z. & Torres, Phillip J.', 5],
    ['Takiya, Daniela Maeda & Santos, Allan Paulo Moreira', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=24)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);