function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albano, Paolo G. & Bakker, Piet A. J. & Janssen, Ronald', 1],
    ['Albano, Paolo G. & Steger, Jan & Bakker, Piet A. J.', 1],
    ['Cunha, Carlo M. & Salvador, Rodrigo B.', 2],
    ['Gutiérrez, Manuel Caballer & Ortea, Jesús & Rivero, Nelsy', 4],
    ['Mehrotra, Rahul & A. Caballer Gutierrez, Manuel & M. Scott, Chad', 2],
    ['Montfort, D. de', 1],
    ['Oskars, Trond Roger & Mifsud, Constantine', 1],
    ['Pease, W. H.', 2],
    ['Too, Chin Chin & Carlson, Clay & Hoff, Patty Jo', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);