function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amorim, Dalton De Souza & Falaschi, Rafaela Lopes', 1],
    ['Dale E. Greenwalt & Daniel J. Bickel & Peter H. Kerr', 1],
    ['Elgueta, Mario & Amorim, Dalton De Souza', 7],
    ['Enderlein, Günther', 2],
    ['Evenhuis, Neal L.', 1],
    ['Evenhuis, Neal L. & Pape, Thomas', 1],
    ['Falaschi, Rafaela L. & Oliveira, Sarah Siqueira', 24],
    ['Hancock, E. Geoffrey & Hewitt, Stephen M. & Horsfield, David', 1],
    ['Huerta, Heron & Dzul-Manzanilla, Felipe', 8],
    ['Kolcsar, Levente-Peter & Dvorak, Libor & Beuk, Paul LT', 8],
    ['Osten Sacken, C. R.', 2],
    ['O’Hara, James E. & Cerretti, Pierfilippo & Pape, Thomas', 2],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 2],
    ['Wang, Ye-hao & Nel, André & Fu, Yan-zhe & Su, Yi-tong', 2],
    ['Wojtoń, Maciej & Kania, Iwona & Krzemiński, Wiesław', 15],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=79)',
    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);