function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allain, Ronan & Vullo, Romain & Rozada, Lee & Anquetin, Jérémy', 6],
    ['Brown, Caleb Marshall & Boyd, Clint A. & Russell, Anthony P.', 3],
    ['Butler, Richard J.', 3],
    ['Evans, David C.', 3],
    ['Gates, Terry A. & Sampson, Scott D.', 5],
    ['Maidment, Susannah C. R. & Barrett, Paul M.', 4],
    ['Manitkoon, Sita & Deesri, Uthumporn & Warapeang, Prapasiri', 14],
    ['Mcdonald, Andrew T.', 5],
    ['Nesbitt, Sterling J.', 9],
    ['Norman, David B', 11],
    ['Norman, David B.', 44],
    ['Norman, David B. & Butler, Richard J. & Maidment, Susannah C. R.', 4],
    ['Norman, David B. & Crompton, Alfred W. & Butler, Richard J.', 6],
    ['Prieto-Márquez, Albert', 8],
    ['Sereno, Paul C.', 8],
    ['Other (32)', 48]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=181)',
    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);