function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Al Khatib, Fadel & Fusu, Lucian & Cruaud, Astrid & Gibson, Gary', 11],
    ['Al khatib, Fadel & Fusu, Lucian & Cruaud, Astrid & Gibson, Gary', 11],
    ['Askew, Richard R. & Melika, George & Pujade-Villar, Juli', 9],
    ['Cameron, P.', 1],
    ['Dale-Skey, Natalie & Askew, Richard R. & Noyes, John S.', 30],
    ['Delvare, G. & Escolà, A. Ribes & Stojanova, A. M. & Benoit, L.', 5],
    ['Fusu, Lucian & Ebrahimi, Ebrahim & Siebold, Cedric', 4],
    ['Gary A. P. Gibson & Lucian Fusu', 79],
    ['Gibson, Gary A. P.', 30],
    ['Gibson, Gary A. P. & Dewhurst, Charles & Makai, Simon', 2],
    ['Lucian Fusu & Antoni Ribes', 2],
    ['Madl, Michael', 6],
    ['Mifsud, David & Askew, Richard R.', 3],
    ['Pérez-Benavides, A. Lucía & Hernández-Baz, Fernando', 12],
    ['Walker, Francis', 5],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=216)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);