function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baptista, Renner Luiz Cerqueira & Castanheira, Pedro De Souza', 7],
    ['Deza, Mariajosé & Andía, Juan Manuel', 2],
    ['Framenau, Volker W. & Scharff, Nikolaj & Levi, Herbert W.', 1],
    ['Poeta, Maria Rita Muniz & Lise, Arno Antonio', 4],
    ['Rodrigues, Everton Nei Lopes & Mendonça, Milton De S.', 2],
    ['Santos, Karina P. & Santos, Adalberto J.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);