function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bernal, Manuel Hernando & Luna-Mora, Victor Fabio', 1],
    ['Brown, Jason L. & Twomey, Evan & Amézquita, Adolfo', 24],
    ['Brown, Jason L. & Twomey, Evan & Pepper, Mark', 1],
    ['Perez-Peña, Pedro E. & Chavez, German & Twomey, Evan', 2],
    ['Twomey, Evan & Brown, Jason L.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=29)',
    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);