function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adams, Zoe J. O. & Shimabukuro, Paloma Helena Fernandes', 8],
    ['Ibáñez-Bernal, Sergio & Durán-Luz, Juana', 15],
    ['Ibáñez-Bernal, Sergio & Muñoz, José', 5],
    ['Ibáñez-Bernal, Sergio & Suárez-Landa, Teresa & Mendoza, Fredy', 3],
    ['Oca-Aguilar, Ana Celia Montes De & Rebollar-Téllez, Eduardo', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=32)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 5, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);