function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arai, Hisao P.', 2],
    ['Bray, Rodney A. & Gibson, David Ian', 4],
    ['Bray, Rodney A. & Justine, Jean-Lou', 5],
    ['Chaari, Manel & Derbel, Hela & Neifar, Lassad', 3],
    ['Fischthal, Jacob H.', 2],
    ['Kamegai, Shunya', 2],
    ['Korotaeva, V. D.', 2],
    ['Linton, E.', 3],
    ['Machida, Masaaki & Kamegai, Shunya & Kuramochi, Toshiaki', 4],
    ['Madhavi, R.', 5],
    ['Manter, Harold W.', 10],
    ['Margarita Ostrowski de Núñez & Nathalia J. Arredondo', 4],
    ['Siddiqi, Ather H. & Cable, Raymond M.', 3],
    ['Toman, Gerd', 4],
    ['Yamaguti, S.', 23],
    ['Other (60)', 68]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=144)',
    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);