function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aldrete, Alfonso N. Garcia & Nieto, Julian A. Mendivil', 2],
    ['Cutrim, Marcelo & Neto, Alberto Moreira Da Silva', 13],
    ['García Aldrete, Alfonso N. & Obando, Ranulfo González', 2],
    ['González-Obando, Ranulfo & Carrejo-Gironza, Nancy', 2],
    ['Lima, Daniel Moura & Silva-Neto, Alberto Moreira Da', 2],
    ['Nieto, Julián Alexander Mendivil & Aldrete, Alfonso Neri García', 12],
    ['Obando, Ranulfo González & Gironza, Nancy Carrejo', 17]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=50)',
    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);